what area will 1ltre cover

A 2.5l can wil cover 2.5sq meters of felt painted twice. Hope that helps

Still wet after 20 hours?? Anyone else experience this?

Depends on temp. but should be dry within 20 hrs. However if it waservice for proper advice.s applied to a moist surface perhaps this affects the drying cycle, suggest you contact manufacturer

can it be used over lead flashing?

I'm not sure but if you can use it over roofing felt I would guess that you could

can it be applied to felt that was torn in a gale

Yes, it can as long as you manage to flatten it down again

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🛠️ Seal the deal with Thompsons – your roof’s 10-year armor!

BREATHABLE SEAL - Allows trapped moisture to escape, ensuring your roof stays dry and damage-free without compromising the seal.
UV SHIELD TECHNOLOGY - Iron oxide pigments create a robust barrier against harsh UV rays, maintaining performance under extreme weather.
DECADE LONG DURABILITY - Engineered to flex with your roof, preventing cracks and splits for 10 years of reliable protection.
EFFORTLESS APPLICATION - Advanced formula applies smoothly on dry surfaces, forming a tough, flexible membrane that lasts.
RESEALABLE CONVENIENCE - Comes in a 2.5L tin with a resealable lid, perfect for ongoing maintenance and large repairs.

The Thompsons HPRS25L 2.5L High Performance Roof Seal in black is a premium elastomeric coating designed to protect and repair roofs with a flexible, UV-resistant membrane. Its 10-year formulation flexes with roof movement to prevent cracking, while iron oxide pigments shield against UV damage. The breathable, vapour permeable seal ensures moisture escapes, preserving roof integrity under extreme conditions. Supplied in a convenient resealable 2.5L tin, it’s the professional choice for long-lasting roof protection.

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Manufacturer	Ronseal
Part Number	RSLHPRS25L
Product Dimensions	16.3 x 16 x 16.5 cm; 1.7 kg
Item model number	RSLHPRS25L
Size	2.5L
Colour	Black
Material	Iron Oxide
Item Package Quantity	1
Batteries included?	No
Batteries Required?	No
Battery description	Not Included
Item Weight	1.7 kg

HPRS25L 2.5L Thompsons High Performance Roof Seal - Black

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