Red Devil

Red Devil spackling, caulk and hand tools cover wall patching, gap sealing and repair work for homeowners and contractors. The range includes both repair materials and the putty knives, wall scrapers and taping knives you use to apply them and prepare the surface.

Red Devil is a privately owned, family-operated American manufacturer. It started as Smith & Hemenway Company in Hill, New Hampshire, in 1872. Its headquarters are in Tulsa, Oklahoma, and its manufacturing operations are in Pryor, Oklahoma. Its range includes hand tools, caulks, sealants, adhesives, spackling and repair products.

Wall patching and paint preparation

ONETIME includes PATCH & PRIME and LIGHTEN UP lightweight spackling. For small holes and surface damage, remove loose material before spreading the patch. Feather the edges into the surrounding wall. A raised rim means more finishing work.

Let the repair dry before finishing it, then shine a light across the wall to find ridges. Texture matters, too. A smooth patch stands out on a textured wall, so match the surrounding texture before painting.

For holes that need support behind the repair material, ONETIME also includes Wall Repair Patches and a Patch-A-Wall Kit. Red Devil’s other repair compounds include Crack Patch Premium Spackling for walls and Pre-Mixed Concrete Patch for concrete.

Window & Door Siliconized Acrylic Caulk covers another part of the repair range; when finishing a caulk joint, draw the finishing tool along the fresh bead with steady pressure and wipe away excess as you go.

Putty knives and scrapers

Red Devil’s EZ Grip range includes a flexible-blade spackling knife. A flexible blade helps you spread and feather a patch, while a stiff scraper puts pressure into the edge for lifting loose material. Match the blade to the work.

For a broader repair, a taping knife helps spread the transition around the patch. Keep dried compound off the edge, because a dirty blade drags tracks through fresh material.

Duct sealing and heat repairs

Red Devil’s water-based duct-sealant range serves residential and commercial work and includes smooth and fiber-reinforced versions. Clean dirt and oily residue from the joint before applying the sealant.

For a heat repair, cured hardness matters alongside temperature resistance. Match the repair material to the movement at the joint and the intended application.

Product details

Product or range	Specifications
ONETIME PATCH & PRIME	Lightweight spackling.
ONETIME LIGHTEN UP	Lightweight spackling.
Red Devil duct sealants	The range includes smooth gray and fiber-reinforced white and gray versions.
Fireplace & Stove Repair	This interior-only, silicate-based compound hardens when fired and withstands temperatures up to 2700°F.
RD PRO High Temp Red	This sealant remains flexible, resists vibration and resists heat exposure up to 600°F.

Frequently Asked Questions

Which Red Devil caulk should I use?

Choose Red Devil caulk around what the finished joint needs to do. If you’re painting the joint, Paintable Silicone is a paintable option; if you need a removable seal, ZIP-A-WAY fits that job. Make that choice before applying the bead, because paintability and removability are different properties.

What is Red Devil ONETIME lightweight spackling used for?

Red Devil ONETIME lightweight spackling is for small wall repairs before painting. Press the material into the damage instead of leaving a thin skin over an empty hole. Draw off the excess with your knife while it’s workable so there’s less raised material to finish later.

How do you use Red Devil concrete patch?

Red Devil concrete patch comes premixed for patching concrete. Remove loose concrete and brush dust out of the repair so the patch contacts sound material. Work it into the damaged area instead of bridging over a hollow spot; a neat surface won’t make up for loose material underneath.

How much heat can Red Devil high-temp silicone take?

Red Devil high-temp red silicone resists heat exposure up to 600°F, stays flexible and resists vibration. Match the material to both the heat exposure and the movement at the joint. A flexible seal and a fireplace repair compound that hardens when fired do different jobs, even though both resist heat.