Easy. Fast. Waterproof.

FastFlash stops leaks around new windows.

Your new windows may be watertight but the area around your windows is the most vulnerable for water leaks. Those leaks can cause rot and mold behind your siding.

FEATURES

Waterproof like the pros

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Sticks to almost anything

Wood framing, building paper, vinyl, aluminum,  fiberglass, house wrap, OSB; FastFlash sticks to it all and makes it all leak proof.

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Fast and easy to install

Gun it out and spread it to make your entire window opening waterproof.

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Even sticks to wet surface

Thanks to its cutting-edge chemistry, FastFlash can bond even to surfaces that are wet or damp.

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Remove old window

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Replace anything rotted or damaged 

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Apply FastFlash to window opening

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Install new window

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FastFlash- cartridge

One 29 oz. cartridge
To waterproof 2 windows
(based on 3'x5' window)

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FastFlash- 4 Pack

Pack of four 20 oz. sausages
To waterproof 4 windows
(based on 3'x5' window)

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FastFlash- 8 pack

eight 20 oz. sausages
To waterproof 8 windows
(based on 3'x5' window)

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FastFlash- 20 pack

Twenty 20 oz. sausages
To waterproof 20 windows
(based on 3'x5' window)

Got FastFlash questions?
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