Steel Wool (Soapless)
PROFESSIONAL NOTE: Copper mesh is strongly preferred over steel wool for all rodent exclusion work because steel wool rusts and fails, especially in moisture-prone areas. Steel wool may be used for temporary exclusion in dry interior locations only. Must be soapless to avoid deterioration.
Common Use Cases
- TEMPORARY fill for holes in dry interior areas (copper mesh preferred)
- Emergency gap filling when copper mesh unavailable
- Dry attic or wall void applications only
Application Instructions
CAUTION: This is not the preferred material for rodent exclusion. Use copper mesh whenever possible. If steel wool must be used: Wear gloves - steel wool is sharp. Stuff firmly into holes and gaps in DRY AREAS ONLY. Pack tightly. Seal over immediately with caulk, spackle, or other permanent sealant. Use only soapless steel wool. IMPORTANT: Steel wool WILL rust and fail in moisture-prone areas (kitchens, bathrooms, basements, exterior). Always use copper or stainless steel mesh in these locations.
Specifications
Soapless steel wool, medium to coarse grade (#0 or #1 grade). Must be labeled soapless or soap-free. Do not use standard household steel wool which contains soap. NOTE: Professional pest control operators should stock copper mesh instead.
Safety Warnings & Precautions
- Wear gloves to avoid splinters and cuts
- Steel wool edges are very sharp
- CRITICAL: Will rust and fail in moist conditions - do not use in kitchens, bathrooms, basements, or exterior
- Not suitable for long-term rodent exclusion - use copper mesh
Related Materials
Other gap filler materials
Backer Rod
Flexible foam rope used to fill deep or wide gaps before caulking. Provides backing for sealant, reducing amount of caulk needed and improving seal performance.
Copper Mesh
Tightly woven copper or stainless steel mesh used to fill holes and gaps around pipes, in walls, and other openings. Rodents cannot chew through copper or stainless steel mesh.