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Best Fibreglass Paint of 2026
Last updated on 11/04/2026
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1
paints4trade BoatGuard Boat & Marine Primer For Metal, Wood & Fibreglass (5 Litre, White)
paints4trade
Why we love it
Versatile application methods available.
Quick drying for efficiency.
Perfect for various boat materials.
Main Highlights
✅ SUPERIOR ADHESION ON METAL, WOOD & FIBREGLASS – Strong bonding formula ensures your marine paint topcoat applies smoothly and lasts longer.
Drying Time : 30 Mins - Coverage 8m² P/Litre
✅ FAST DRYING & EASY APPLICATION – Touch dry in 15-30 mins, recoat in 90 mins, hard dry in 24 hours for quick project turnaround.
Recommended Thinner : Trade Paints Industrial Thinner
Ideal for All Boat Marine Vessels - Metal, Wood, GRP, Fibreglass
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9.8
Exceptional
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9.8
Exceptional
paints4trade
paints4trade BoatGuard Boat & Marine Primer For Metal, Wood & Fibreglass (5 Litre, White)
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Why we love it
Versatile application methods available.
Quick drying for efficiency.
Perfect for various boat materials.
Main Highlights
✅ SUPERIOR ADHESION ON METAL, WOOD & FIBREGLASS – Strong bonding formula ensures your marine paint topcoat applies smoothly and lasts longer.
Drying Time : 30 Mins - Coverage 8m² P/Litre
✅ FAST DRYING & EASY APPLICATION – Touch dry in 15-30 mins, recoat in 90 mins, hard dry in 24 hours for quick project turnaround.
Recommended Thinner : Trade Paints Industrial Thinner
Ideal for All Boat Marine Vessels - Metal, Wood, GRP, Fibreglass
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Value for Money
2
Liquid Rubber Roof Sealant 5L Grey | Flexible Waterproof Sealant Outdoor Roof Coating for Flat Roof Repair, Asphalt, GRP, Fibreglass & Concrete | One Coat Leak Protection, UV & Weather Resistant
READY STEADY DEFEND
Why we love it
Seamless waterproof protection guaranteed.
One coat application saves time.
Versatile for various surfaces.
Main Highlights
COMPLETE FLAT ROOF WATERPROOFING! – High-performance liquid rubber roof sealant for long-lasting flat roof repair. Creates a flexible, seamless waterproof coating for garages, extensions, sheds, dormers and balconies, protecting against water, rain and harsh UK weather on multiple surfaces all year.
ONE COAT LEAK SEAL TECHNOLOGY – Thick, brushable liquid rubber forms a seamless membrane in a single high-build coat, reducing time on flat roof repair jobs. The flexible acrylic coating bridges hairline cracks, helps stop ponding water ingress and resists peeling, flaking and brittleness over time.
MULTI-SURFACE+ ROOF & GUTTER ADHESION! – Designed for common roofing materials including felt, asphalt, GRP, fibreglass, EPDM, concrete, metal and timber. Ideal for garage roofs, sheds, verandas, dormers, gutters, cladding, upstands and roof details where a waterproof roof coating is required in UK.
EASY BRUSH, ROLLER OR SPRAY APPLICATION! – Simple to apply by DIY users or professionals. Mix thoroughly, then lay a thick, even coat with a synthetic brush, medium pile roller or airless sprayer. 5L covers approx 5m²+ per coat on roofs, touch dry in 1–2 hours and fully cured in 24–48 hours at 20°C.
LONG-LASTING, UK-MADE ROOF PROTECTION! – Premium liquid rubber roof coating with up to 10-year+ life expectancy when applied correctly. Helps keep roofing dry to reduce heat loss, resist mould and algae growth and cut maintenance. Manufactured in UK for reliable quality trusted by trades and DIYers.
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9.7
Exceptional
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9.7
Exceptional
READY STEADY DEFEND
Liquid Rubber Roof Sealant 5L Grey | Flexible Waterproof Sealant Outdoor Roof Coating for Flat Roof Repair, Asphalt, GRP, Fibreglass & Concrete | One Coat Leak Protection, UV & Weather Resistant
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Why we love it
Seamless waterproof protection guaranteed.
One coat application saves time.
Versatile for various surfaces.
Main Highlights
COMPLETE FLAT ROOF WATERPROOFING! – High-performance liquid rubber roof sealant for long-lasting flat roof repair. Creates a flexible, seamless waterproof coating for garages, extensions, sheds, dormers and balconies, protecting against water, rain and harsh UK weather on multiple surfaces all year.
ONE COAT LEAK SEAL TECHNOLOGY – Thick, brushable liquid rubber forms a seamless membrane in a single high-build coat, reducing time on flat roof repair jobs. The flexible acrylic coating bridges hairline cracks, helps stop ponding water ingress and resists peeling, flaking and brittleness over time.
MULTI-SURFACE+ ROOF & GUTTER ADHESION! – Designed for common roofing materials including felt, asphalt, GRP, fibreglass, EPDM, concrete, metal and timber. Ideal for garage roofs, sheds, verandas, dormers, gutters, cladding, upstands and roof details where a waterproof roof coating is required in UK.
EASY BRUSH, ROLLER OR SPRAY APPLICATION! – Simple to apply by DIY users or professionals. Mix thoroughly, then lay a thick, even coat with a synthetic brush, medium pile roller or airless sprayer. 5L covers approx 5m²+ per coat on roofs, touch dry in 1–2 hours and fully cured in 24–48 hours at 20°C.
LONG-LASTING, UK-MADE ROOF PROTECTION! – Premium liquid rubber roof coating with up to 10-year+ life expectancy when applied correctly. Helps keep roofing dry to reduce heat loss, resist mould and algae growth and cut maintenance. Manufactured in UK for reliable quality trusted by trades and DIYers.
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3
Polar Bitumenseal Grey Paint - 5KG - Instant Waterproof Bitumen Roof Sealant - Ideal for Leaks, Cracks & Pitched Roof Repair - Concrete, Brick, Asphalt, Drainpipes & Gutters - Easy to Apply
Polar Specialist Coatings
Why we love it
Instant and durable waterproof seal.
Easy, one-coat application process.
Long-lasting, protective finish.
Main Highlights
Instant Waterproof Seal: The ideal solvent-free solution for immediate and complete sealing of emergency leaks or cracks. Apply directly to the affected area to quickly seal and protect. This bitumen roof sealant forms a robust, waterproof membrane to keep damp and water out, ensuring reliable long-term results
One Coat Application: Efficiently seal cracks or leaks with just one coat, saving you time and effort. A 5kg container covers up to 5m², delivering optimal waterproof protection with a single application. This bitumen paint solution is suitable for various uses, ensuring excellent results. for both residential and commercial applications
Multi-Surface Compatibility: Specially formulated with reinforced fibres that interlace to provide reliable protection. The water-resistant solution offers a resilient finish that works on drain pipes, gutters, GRP, flat and pitched roofs, bitumen, metal, fibreglass, and concrete
Easy to Apply: No primer is needed before applying Polar Bitumenseal waterproofing paint. Apply immediately and directly for instant protection. Clear the affected area of moss and debris, and remove any surface water, oil, or grease. Use a brush or roller depending on the size of the area. Touch dry within 3 hours. Allow 24 hours to fully dry. Note: Should not be applied in poor drying conditions or when rain is imminent
Attractive Finish: Polar Bitumenseal is a water-based solution that provides long-lasting protection. Available in grey, white, and black finishes and is available in a convenient 5kg size to suit any job. Dries to form a durable and water-resistant finish, ensuring a professional and clean appearance every time
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9.6
Superb
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9.6
Superb
Polar Specialist Coatings
Polar Bitumenseal Grey Paint - 5KG - Instant Waterproof Bitumen Roof Sealant - Ideal for Leaks, Cracks & Pitched Roof Repair - Concrete, Brick, Asphalt, Drainpipes & Gutters - Easy to Apply
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Show More
Why we love it
Instant and durable waterproof seal.
Easy, one-coat application process.
Long-lasting, protective finish.
Main Highlights
Instant Waterproof Seal: The ideal solvent-free solution for immediate and complete sealing of emergency leaks or cracks. Apply directly to the affected area to quickly seal and protect. This bitumen roof sealant forms a robust, waterproof membrane to keep damp and water out, ensuring reliable long-term results
One Coat Application: Efficiently seal cracks or leaks with just one coat, saving you time and effort. A 5kg container covers up to 5m², delivering optimal waterproof protection with a single application. This bitumen paint solution is suitable for various uses, ensuring excellent results. for both residential and commercial applications
Multi-Surface Compatibility: Specially formulated with reinforced fibres that interlace to provide reliable protection. The water-resistant solution offers a resilient finish that works on drain pipes, gutters, GRP, flat and pitched roofs, bitumen, metal, fibreglass, and concrete
Easy to Apply: No primer is needed before applying Polar Bitumenseal waterproofing paint. Apply immediately and directly for instant protection. Clear the affected area of moss and debris, and remove any surface water, oil, or grease. Use a brush or roller depending on the size of the area. Touch dry within 3 hours. Allow 24 hours to fully dry. Note: Should not be applied in poor drying conditions or when rain is imminent
Attractive Finish: Polar Bitumenseal is a water-based solution that provides long-lasting protection. Available in grey, white, and black finishes and is available in a convenient 5kg size to suit any job. Dries to form a durable and water-resistant finish, ensuring a professional and clean appearance every time
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4
Swindon Composite Supplies Resin Topcoat Grey Top Coat Resin Flo Coat Flocoat - Suited for Fibreglass Roofs (Grey 5Kg)
Swindon Composite Supplies
Why we love it
UV protection and waterproof.
Easy to mix catalyst.
Very strong and durable.
Main Highlights
This DARK GREY topcoat is mainly used for Fibreglass roof applications as well as for Marine Craft. . It is mixed with the supplied catalyst at 2%. It provides a tough UV protected waterproof layer. The Tocoat is sold on Weight, the container wont be completely full but will have the correct stated weight. Colour code - RAL 7011
The Top Coat should be allowed to attain workshop temperature (18ºC-20°C) before use. Stir well by hand, or with a low shear mixer to avoid aeration. It only requires the addition of catalyst to start the curing reaction. Important - This is Not paint but still a resin product - Accurately measured addition of the MEKP hardener is essential. Recommend to WEIGH the topcoat and then multiply the weight by 0.02 to get an accurate calculation for the required MEKP activator.
Coverage - A very approximate guide depending on how liberally its applied - Guide 500-600g Per Square M.
Working time dependend on ambient temperture, expect approx 10-15 mins at 15 DegC. Hot conditions will REDUCE this time significantly , Full cure in approx 24 hours . Further coats require Sanding to " KEY " the suface .
The topcoat has a VERY STRONG SMELL- this is normal for Polyester based products, Use gloves and keep well ventilated.
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9.6
Superb
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9.6
Superb
Swindon Composite Supplies
Swindon Composite Supplies Resin Topcoat Grey Top Coat Resin Flo Coat Flocoat - Suited for Fibreglass Roofs (Grey 5Kg)
Check Price
Show More
Why we love it
UV protection and waterproof.
Easy to mix catalyst.
Very strong and durable.
Main Highlights
This DARK GREY topcoat is mainly used for Fibreglass roof applications as well as for Marine Craft. . It is mixed with the supplied catalyst at 2%. It provides a tough UV protected waterproof layer. The Tocoat is sold on Weight, the container wont be completely full but will have the correct stated weight. Colour code - RAL 7011
The Top Coat should be allowed to attain workshop temperature (18ºC-20°C) before use. Stir well by hand, or with a low shear mixer to avoid aeration. It only requires the addition of catalyst to start the curing reaction. Important - This is Not paint but still a resin product - Accurately measured addition of the MEKP hardener is essential. Recommend to WEIGH the topcoat and then multiply the weight by 0.02 to get an accurate calculation for the required MEKP activator.
Coverage - A very approximate guide depending on how liberally its applied - Guide 500-600g Per Square M.
Working time dependend on ambient temperture, expect approx 10-15 mins at 15 DegC. Hot conditions will REDUCE this time significantly , Full cure in approx 24 hours . Further coats require Sanding to " KEY " the suface .
The topcoat has a VERY STRONG SMELL- this is normal for Polyester based products, Use gloves and keep well ventilated.
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5
Hempel Multicoat White Topcoat - 750ml, Marine Grade Paint for Boats, Weatherproof and Durable, Ideal for Fibreglass, Wood, Metal Surfaces, For DIY Enthusiasts and Marine Professionals
Hempel
Why we love it
Semi-gloss topcoat and primer.
Perfect for above waterline.
Versatile and easy application.
Main Highlights
Single Component Semi-Gloss Topcoat and Primer - MultiCoat offers the convenience of a single-component solution, serving as both a semi-gloss topcoat and primer in one.
Ideal for Above Waterline Areas - Perfect for areas above the waterline that demand a durable semi-gloss finish, providing excellent protection and aesthetics.
Versatile Application - This can be directly applied to most surfaces, ensuring ease of use and versatility. Offers exceptional durability with resistance to water and oil.
Preparation and Application Guidelines - Prior to application, ensure surfaces are clean, oil-free, and dry. Use appropriate cleaners, rinse with fresh water, and allow surfaces to dry thoroughly.
For Previously Coated and Uncoated Surfaces - Provides tailored instructions for both previously coated and uncoated surfaces. Includes guidelines for preparation, priming, and application, ensuring optimal results. This can also be used as a primer when appropriately thinned with compatible thinners.
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9.5
Superb
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9.5
Superb
Hempel
Hempel Multicoat White Topcoat - 750ml, Marine Grade Paint for Boats, Weatherproof and Durable, Ideal for Fibreglass, Wood, Metal Surfaces, For DIY Enthusiasts and Marine Professionals
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Show More
Why we love it
Semi-gloss topcoat and primer.
Perfect for above waterline.
Versatile and easy application.
Main Highlights
Single Component Semi-Gloss Topcoat and Primer - MultiCoat offers the convenience of a single-component solution, serving as both a semi-gloss topcoat and primer in one.
Ideal for Above Waterline Areas - Perfect for areas above the waterline that demand a durable semi-gloss finish, providing excellent protection and aesthetics.
Versatile Application - This can be directly applied to most surfaces, ensuring ease of use and versatility. Offers exceptional durability with resistance to water and oil.
Preparation and Application Guidelines - Prior to application, ensure surfaces are clean, oil-free, and dry. Use appropriate cleaners, rinse with fresh water, and allow surfaces to dry thoroughly.
For Previously Coated and Uncoated Surfaces - Provides tailored instructions for both previously coated and uncoated surfaces. Includes guidelines for preparation, priming, and application, ensuring optimal results. This can also be used as a primer when appropriately thinned with compatible thinners.
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6
Hempel Multicoat - Light Blue - 750ml - Boat Paint Topcoat
Hempel ( MB Fibreglass )
Why we love it
Exceptional long-lasting performance.
Effective against harsh elements.
Versatile application methods available.
Main Highlights
Excellent Durability
Good brush-ability resistant to sunlight, salt water
Resistant to sunlight, salt water & mineral oil spills
Can be applied via Brush/Roller/Pad/Spray
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9.3
Superb
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9.3
Superb
Hempel ( MB Fibreglass )
Hempel Multicoat - Light Blue - 750ml - Boat Paint Topcoat
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Why we love it
Exceptional long-lasting performance.
Effective against harsh elements.
Versatile application methods available.
Main Highlights
Excellent Durability
Good brush-ability resistant to sunlight, salt water
Resistant to sunlight, salt water & mineral oil spills
Can be applied via Brush/Roller/Pad/Spray
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7
T A Paints Ltd Fiberglass Primer Paint Suitable for Fiberglass, Gelcoat, Metal & GRP Marine Boats, Swimming Pools, Ponds & Hot Tub (1 litre, White)
T A Paints Ltd
Why we love it
Durable for various surfaces.
Easy application and smooth finish.
Ideal for marine environments.
Main Highlights
T A Paints Ltd Fiberglass Primer Paint Suitable for Fiberglass, Gelcoat, Metal & GRP Marine Boats, Swimming Pools, Ponds & Hot Tub (1 litre, White)
Product type: PAINT
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9.2
Superb
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9.2
Superb
T A Paints Ltd
T A Paints Ltd Fiberglass Primer Paint Suitable for Fiberglass, Gelcoat, Metal & GRP Marine Boats, Swimming Pools, Ponds & Hot Tub (1 litre, White)
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Why we love it
Durable for various surfaces.
Easy application and smooth finish.
Ideal for marine environments.
Main Highlights
T A Paints Ltd Fiberglass Primer Paint Suitable for Fiberglass, Gelcoat, Metal & GRP Marine Boats, Swimming Pools, Ponds & Hot Tub (1 litre, White)
Product type: PAINT
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8
Antel Anti-Slip Marine Deck Paint - 1 Litre - Non Slip Epoxy Suitable for Boats, Decks, Steps - Wood, Metal, Concrete, Fibreglass, Plywood & Timber (White)
Antel
Why we love it
Barefoot and paw friendly.
Extremely hardwearing and durable.
Odour free and easy application.
Main Highlights
Excellent Anti-Slip Properties in Wet & Dry
Barefoot & Paw Friendly
Very Hardwearing & Resistant to Chemicals
Suitable for Concrete, Metal, Wood, Fibreglass & More
Easy to Apply
Approx 4-5 m2 Coverage Per Litre
Odour Free
Safe to Walk On After 6-8 Hours at 20c
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9.1
Superb
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9.1
Superb
Antel
Antel Anti-Slip Marine Deck Paint - 1 Litre - Non Slip Epoxy Suitable for Boats, Decks, Steps - Wood, Metal, Concrete, Fibreglass, Plywood & Timber (White)
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Why we love it
Barefoot and paw friendly.
Extremely hardwearing and durable.
Odour free and easy application.
Main Highlights
Excellent Anti-Slip Properties in Wet & Dry
Barefoot & Paw Friendly
Very Hardwearing & Resistant to Chemicals
Suitable for Concrete, Metal, Wood, Fibreglass & More
Easy to Apply
Approx 4-5 m2 Coverage Per Litre
Odour Free
Safe to Walk On After 6-8 Hours at 20c
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9
Siramico Coatings Liquid Rubber Roof Coating | Instant Leak Seal Technology I Quick Drying, One Coat Waterproofing Sealant | Black, Grey & Clear (Clear, 1 Litre)
SIRAMICO COATINGS
37% Off
Why we love it
Convenient for various surfaces.
No primer or second coat.
Long-lasting waterproof protection.
Main Highlights
✅Designed for both flat and pitched roofs, this high-performance coating adheres to a wide range of surfaces, including asphalt, brick, concrete, GRP, metal, felt, OSB, and more.
✅No primer needed, no second coat required—just a single, easy application with a brush or roller. Siramico Coatings Liquid Rubber Coating is perfect for hassle-free DIY use, delivering a professional finish with minimal effort.
✅Forming a seamless, elastic membrane, this liquid rubber coating expands and contracts with your surface, providing strong adhesion and waterproofing that lasts up to 10 years.
✅Quick drying and ease to use straight out of the can liquid rubber solution for all your waterproofing requirements.
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8.9
Excellent
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8.9
Excellent
SIRAMICO COATINGS
Siramico Coatings Liquid Rubber Roof Coating | Instant Leak Seal Technology I Quick Drying, One Coat Waterproofing Sealant | Black, Grey & Clear (Clear, 1 Litre)
37% Off
Check Price
Show More
Why we love it
Convenient for various surfaces.
No primer or second coat.
Long-lasting waterproof protection.
Main Highlights
✅Designed for both flat and pitched roofs, this high-performance coating adheres to a wide range of surfaces, including asphalt, brick, concrete, GRP, metal, felt, OSB, and more.
✅No primer needed, no second coat required—just a single, easy application with a brush or roller. Siramico Coatings Liquid Rubber Coating is perfect for hassle-free DIY use, delivering a professional finish with minimal effort.
✅Forming a seamless, elastic membrane, this liquid rubber coating expands and contracts with your surface, providing strong adhesion and waterproofing that lasts up to 10 years.
✅Quick drying and ease to use straight out of the can liquid rubber solution for all your waterproofing requirements.
Show More
10
Everbuild Black Jack 905 – All Weather Roof Coating – Solvent-Based – Fibre-Reinforced – Fast Drying – Weatherproof – Black – 5 Litre
Everbuild
28% Off
Why we love it
Quick drying for efficient use.
Super strong, weatherproof finish.
Versatile, complete waterproof coating.
Main Highlights
QUICK DRYING FORMULA – This brushable bitumen compound dries fast and is ready for a second coat in 24 hours.
SUPER STRONG FINISH – Solvent-based formula with added fibres to reinforce the strength and weatherproofing of the coating.
IDEAL FOR WEATHERPROOFING APPLICATIONS – Designed to deliver an immediate waterproof coating to non-plastic guttering, structural steelwork and other roofing applications.
SUITABLE FOR USE ON A RANGE OF SUBSTRATES – Use it to reseal and weatherproof a range of materials, including asphalt and felt roofing, concrete decks and sheeting, metal sheeting, tiles and more.
COMPLETE WATERPROOF COATING – Versatile enough to use as a protective barrier on walls and roofs to prevent water and vapour entry.
A CHOICE OF SIZES – Available in both 5-litre and 25-litre tins to suit your project size.
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8.8
Excellent
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8.8
Excellent
Everbuild
Everbuild Black Jack 905 – All Weather Roof Coating – Solvent-Based – Fibre-Reinforced – Fast Drying – Weatherproof – Black – 5 Litre
28% Off
Check Price
Show More
Why we love it
Quick drying for efficient use.
Super strong, weatherproof finish.
Versatile, complete waterproof coating.
Main Highlights
QUICK DRYING FORMULA – This brushable bitumen compound dries fast and is ready for a second coat in 24 hours.
SUPER STRONG FINISH – Solvent-based formula with added fibres to reinforce the strength and weatherproofing of the coating.
IDEAL FOR WEATHERPROOFING APPLICATIONS – Designed to deliver an immediate waterproof coating to non-plastic guttering, structural steelwork and other roofing applications.
SUITABLE FOR USE ON A RANGE OF SUBSTRATES – Use it to reseal and weatherproof a range of materials, including asphalt and felt roofing, concrete decks and sheeting, metal sheeting, tiles and more.
COMPLETE WATERPROOF COATING – Versatile enough to use as a protective barrier on walls and roofs to prevent water and vapour entry.
A CHOICE OF SIZES – Available in both 5-litre and 25-litre tins to suit your project size.
Show More