All-Purpose Foam CoatEasy to use--just mix with water and you're good to go! Strong, sandable, and inherently fire-resistant. Take it outside by sealing it with outdoor paint, or add further protection mixing it with Boost Fortifier or Bounce Rubberizer. Apply a thick coat using a trowel or a thin one with a paintbrush. Sets up in about 15 minutes. Extend the drying time by adding up to 50% latex paint with your water before mixing it into the dry foam coat. AdditivesLiquid fortifier helps protect and stick to any surface. Rubberizer exclusive to All-Purpose for exterior use and flexibility. Coverage"How much Foam Coat is needed?"
Instructions"How do I use the Foam Coat?"
Printable PDF:
Mixing:
Settling may occur in shipping causing a gritty texture that does not stick well.
Remix if there is separation in dry mixture. Remove or break up any clumps. Use when temperatures are between 40°F (4°C) and 100°F (38°C). Mix in a clean container with clean water. Use 1 part cool water per 3 parts of powder (for example, 1 cup of water per 3 cups of powder). Add water to powder and mix until Foam Coat turns to a smooth paste. Add more powder or water as needed for your application. A drier mix is stronger. If you add Boost or Bounce, a wet mix is stronger. Do not over mix, or separation can occur. You can add powdered or water based cement pigments while mixing in the wet ingredients. Applying: Fill big cracks and holes by applying pasty mixture with a trowel. If using extruded foam (ie Blueboard or Pinkboard) roughen the surface with coarse sandpaper. Apply with a paintbrush, stucco brush, trowel, or hopper gun. Use a thinned mixture to texture large areas. For best strength apply at least 1/4” (6mm) thick. Multiple coats may be applied. Brushing or spraying a thin first coat, called a scratch coat, will make the next coat much easier to apply. Try texturing the surface as the coating sets. Curing: Working time of 10-20 minutes. Reaches full strength in 12-24 hours, depending on temperature and humidity. Add up to 50% latex paint to the water to extend drying time to 40-50 minutes. Finishing: Remove dust before painting. Finishes smooth and can be sanded. Can be painted or mixed with Bounce for use outdoors. Use with grit to create rock textures. Cleaning: Clean tools and brushes with clean soapy water before coating hardens. If you add Boost, do not leave any residue as it will be impossible to clean after it dries. Additional Information
WarrantyHWFF 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.
⚠️ California Proposition 65 Warning:
This product contains crystalline silica, a chemical known to the State of California to cause cancer, birth defects, and reproductive harm. While mixing the dry ingredients use a dust mask or respirator with an RPE of 20 or 40. For more information, go to www.P65Warnings.ca.gov or HWFF's information page: California Proposition 65.
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