Quality Tools & Supplies for Hobbys, DIY & Crafts - Micro-Mark Tools

Hot Wire Foam Factory Exterior Foam Coat, 25 lbs.

Hot Wire Foam Factory Exterior Foam Coat, 25 lbs. - Main image
$41.37 $59.95 In stock

Category: Hot Wire Cutters

Rock hard finish for all of your outdoor (and indoor) foam projects. This stuff is super tough. It is not sandable. Has a rough stone feel when dry. It can be troweled smooth, or brushed to make a super rough finish.


Features:
  • Adheres to polystyrene foams.
  • Forms a weather resistant surface.
  • Easy to mix. Just add water.
  • Use above or below grade.
  • Apply with paintbrush or trowel.
  • Paintable.
  • Fireproof.
  • Many decorative surface textures can be created.
  • Soap and water clean-up.
  • Add Boost fortifier if extra strength is desired. (Will not work with Bounce.)
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Christopher Y. ★★★★★

I troweled this onto a large outdoor planter and the rock-hard finish exceeded my expectations. The rough stone texture looks natural and has held up perfectly through a few rainstorms already.

Steven ★★★★★

I applied this with a brush, and the rough stone texture looks fantastic against the smooth house siding. We've already had a heavy rainstorm and didn't see any peeling or cracks. Just make sure you wear gloves—that rock-hard finish is not forgiving on skin.

Ella ★★★★★

I had to coat a foam pillar that gets full sun all day, and the rough stone finish actually looks intentional once it dried. It’s been through two rainstorms and still feels rock hard, no cracking at all. The only thing I’d warn about is that it’s not sandable, so make sure you’re happy with the tex