Extreme Paints Barn & Shed Paint – PU Oil Based 20.0 kg

Q: What surfaces can I use this barn and shed paint on?

Extreme Paints’ barn and shed paint is suitable for wood, metal, concrete, masonry, galvanised steel, and previously painted surfaces—making it perfect for both timber barns and corrugated metal sheds.

Q: Is this PU barn paint safe for livestock areas like stables or chicken coops?

Yes. This low-VOC, oil-based barn paint is safe for use in agricultural environments once dry. It's ideal for livestock sheds, cattle barns, and horse stables.

Q: Can I apply this shed paint over old coatings like bitumen or creosote?

No. PU shed paint won’t properly bond to bitumen or creosote. Strip or isolate these coatings before application for best results.

Q: Do I need a primer for new wood or metal surfaces before applying barn and shed paint?

For new pressure-treated wood, let it weather 4 weeks—then clean and paint without a primer. For bare metal, especially steel, use an oxide primer before applying this UV-resistant barn paint.

Q: How long does barn and shed paint take to dry?

Touch dry in 2–4 hours, recoat after 2–4 hours, and fully cured in 7 days. You can use the painted shed or barn after 24 hours for light activity.

Q: Is this barn and shed paint resistant to sunlight and weather?

Yes. It contains UV absorbers and weatherproofing agents that protect surfaces from sun fading, rain, and wind—ideal for outdoor farm buildings, garden sheds, and industrial barns.

Q: Can I spray apply this PU barn paint?

Yes. You can use HVLP or airless sprayers (tip size 0.015"–0.017") for smooth application, making it efficient for large barn cladding and metal shed panels.

Q: Will the paint stop rust on metal sheds or barn doors?

It helps protect against future rust, but heavy corrosion must be removed first. Use a compatible anti-rust primer under this shed paint for metal surfaces.

Q: What’s the best temperature to apply barn and shed paint?

Apply when air and surface temperatures are above 8°C and rising. Avoid cold weather, dew, or rain within 3 hours of application.

Q: How long will the barn paint last before recoating is needed?

With proper prep and two coats, the barn and shed paint lasts 5–8 years. Longevity may vary depending on weather exposure and colour (darker shades last longer).

Manufactured by Extreme Paints

Why Choose Our Products?

Low-odour oil-based barn paint with under 80 g/L VOC

Adheres to wood metal masonry brick & concrete

UV-resistant satin finish withstands rain & sunlight

Apply with brush roller or sprayer — no special tools required

Touch-dry in 2–4 h; easy white spirit clean-up

Manufactured in the UK to ISO 9001 standards

Extreme Paints Barn & Shed Paint is a high-performance, Oil-based PU exterior paint engineered for farm buildings, industrial outbuildings, metal cladding, and timber sheds. This advanced formula combines the durability of solvent-based paints with the eco-friendly benefits of Oil-based technology.

Unlike traditional enamels, this PU oxide gloss dries fast, has a low odour, and can be cleaned up with spirit. It forms a flexible but tough coating that moves with wood expansion and adheres tightly to galvanized or primed steel, helping prevent rust, flaking, and chalking.

Ideal for:

Barn doors and cladding
Galvanised metal sheds
Wooden or concrete farm buildings
Corrugated steel panels
Industrial and commercial outbuildings

Suitable Substrates

Softwood, hardwood, plywood
Galvanised steel (abraded), primed metal
Aluminium
Concrete panels, cement board
Brickwork, rendered masonry

Bare steel must be spot-primed with an anti-corrosive oxide primer.

Colours Available

Light Grey • Mid Grey • Dark Grey • Mid Green • Dark Green • Blue • Yellow • Red • Black • White • Orange
Custom BS4800 / RAL shades on orders over 100L.

Coverage & Finish

Coverage: 6–8 m² / L / coat on smooth surfaces
Finish: Smooth satin oxide gloss
Recoats: 2 recommended
Touch dry: 2–4 h
Recoat: 2–4 h
Full cure: 7 days

Surface Preparation

Clean surface thoroughly: remove dust, loose paint, and rust
Moisture < 15% for timber
Abrade galvanized steel; degrease surfaces

Priming

Prime bare steel or rusted metal with anti-corrosive oxide primer

Mixing

Stir thoroughly for 2 minutes using a paddle or stir stick

Application

Brush, medium-nap roller, or sprayer (HVLP or airless, 0.015–0.017" tip)
First coat: thin and even
Second coat: apply after 2–4 hours, ideally at 90° to first coat
Avoid over-brushing

Curing

Protect from rain for 6 h
Light use in 24 h

Full weather and chemical resistance after 7 days

Property	Value
Components	1-part, single pack
Base	Polyurethane resin (Oil-based)
Finish	Satin oxide gloss
Colours	11 standard colours
Recommended coats	2
Coverage	6–8 m²/L/coat
Application tools	Brush, roller, HVLP, airless sprayer
Touch dry	2–4 h @ 18 °C
Full cure	7 days

Property	Value
Clean-up	White Spirit
Shelf life	24 months (sealed, frost-free)
VOC content	< 80 g/L
Use	Interior / Exterior
Primer needed?	Yes, for bare rusted steel

COVERAGE CALCULATOR

MEASURE YOUR DIMENSIONS

Do you know the area?

Yes No

Number of coats:

Frequently Asked Questions

What surfaces can I use this barn and shed paint on?

Extreme Paints’ barn and shed paint is suitable for wood, metal, concrete, masonry, galvanised steel, and previously painted surfaces—making it perfect for both timber barns and corrugated metal sheds.

Is this PU barn paint safe for livestock areas like stables or chicken coops?

Yes. This low-VOC, oil-based barn paint is safe for use in agricultural environments once dry. It's ideal for livestock sheds, cattle barns, and horse stables.

Can I apply this shed paint over old coatings like bitumen or creosote?

No. PU shed paint won’t properly bond to bitumen or creosote. Strip or isolate these coatings before application for best results.

Do I need a primer for new wood or metal surfaces before applying barn and shed paint?

For new pressure-treated wood, let it weather 4 weeks—then clean and paint without a primer. For bare metal, especially steel, use an oxide primer before applying this UV-resistant barn paint.

How long does barn and shed paint take to dry?

Touch dry in 2–4 hours, recoat after 2–4 hours, and fully cured in 7 days. You can use the painted shed or barn after 24 hours for light activity.

Is this barn and shed paint resistant to sunlight and weather?

Yes. It contains UV absorbers and weatherproofing agents that protect surfaces from sun fading, rain, and wind—ideal for outdoor farm buildings, garden sheds, and industrial barns.

Can I spray apply this PU barn paint?

Yes. You can use HVLP or airless sprayers (tip size 0.015"–0.017") for smooth application, making it efficient for large barn cladding and metal shed panels.

Will the paint stop rust on metal sheds or barn doors?

It helps protect against future rust, but heavy corrosion must be removed first. Use a compatible anti-rust primer under this shed paint for metal surfaces.

What’s the best temperature to apply barn and shed paint?

Apply when air and surface temperatures are above 8°C and rising. Avoid cold weather, dew, or rain within 3 hours of application.

How long will the barn paint last before recoating is needed?

With proper prep and two coats, the barn and shed paint lasts 5–8 years. Longevity may vary depending on weather exposure and colour (darker shades last longer).

Can I use this shed paint on concrete or brick walls?

Yes—this PU shed paint bonds well to concrete panels, brickwork, or cement fibre boards, making it perfect for farm storage rooms or mixed-material sheds.

Will the barn paint crack on metal joints or expanding wood?

No. The flexible PU resin film is designed to expand and contract with temperature changes, preventing cracking or peeling.

Can I custom mix colours of this barn and shed paint on-site?

Yes, but for best consistency, it’s recommended to order factory-tinted shades for large areas. Small on-site blending is fine for patchwork.

Does this shed paint resist animal waste like ammonia or urine?

Yes. It is suitable for agricultural settings as it resists mild chemicals, including vapours from manure or animal bedding.

How should I store leftover barn and shed paint?

Seal the tin tightly and store in a frost-free environment between 5°C and 30°C. Decant into smaller pots to reduce air exposure if only partly used.