Skip to product information
1 of 1

Hot Wire Foam Factory

Boost 16oz Foam Coat Additive

Boost 16oz Foam Coat Additive

Regular price $15.99 USD
Regular price $0.00 USD Sale price $15.99 USD
Sale Sold out
Shipping calculated at checkout.

9 in stock


Boost Liquid Fortifier

Bulletproof foam? Not yet, but this is about as close as you will get!

When Boost liquid fortifier is mixed with our Foam Coat it makes it incredibly strong and weatherproof, plus makes it stick to almost anything! Typical proportion for Boost to dry mixture:

Click here for All Purpose Foam Coat Mixing Details and User Tips

Click here for Exterior Foam Coat Mixing Details and User Tips


Amount of Boost Amount of Foam Coat
1 Gallon Boost 50 lbs Foam Coat
2 Quart Boost 25 lbs Foam Coat
8 oz Boost 3 lbs Foam Coat

MIXING: New formula does not require dilution. It’s okay to mix water with Boost, but that will diminish Boost’s strength. Start with 1 part liquid to 3 parts Foam Coat, and thin or thicken as desired. Thinning the Foam Coat with more Boost will not weaken it.

APPLYING: Fill large cracks and holes with pasty mixture. To coat large areas, add more liquid until thin enough to apply with a paint brush. May be applied as thick as 1/4 inch, but multiple coats are stronger. Try texturing surface before coating sets.

SET TIME: Use within 20 minutes. Sets hard in 1-2 hours. Maximum bond and hardness in 24 hours.

CLEAN-UP: Immediately clean tools and brushes with soapy water. Boost cannot be removed once dry.

FINISHING: May be painted or stained.

Suggested Dilutions Boost:Water
It's best to use at 100% for maximum added adhesion and strength, but can be diluted up to 50% with water.



Additional Info:

WARRANTY: HWFF Inc./dba Hot Wire Foam Factory warrants this product to be of merchantable quality when used or applied in accordance with the instructions herein. The product is not warranted as suitable for any purpose or use other than the general purpose for which it is intended. Liability under this warranty is limited to the replacement of its product (as purchased) found to be defective, or at the shipping companies’ option, to refund the purchase price. In the event of a claim under this warranty, notice must be given to The Hot Wire Foam Factory in writing. This limited warranty is issued and accepted in lieu of all other express warranties and expressly excludes liability for consequential damages. MSDS available on request.






View full details