Rust-oleum PH3512 Waste Paint Hardener 3.5 Oz

Product Description

The RUST-OLEUM PH3512 is a 3.5 oz waste paint hardener designed to solidify leftover latex paint so it can be disposed of through standard waste channels. Each packet treats up to two-thirds of a gallon of liquid latex paint, converting it into a solid mass that meets most municipal solid waste requirements. The hardener also absorbs fresh latex paint spills, making cleanup and containment straightforward on job sites or in shop environments. Painters, contractors, and facilities maintenance staff use this product when closing out a project and managing leftover coating materials.

This product is suited for residential and light commercial painting applications where latex paint accumulates in partial cans after a project is complete. It works with standard water-based latex paints and handles incidental spills during application or material handling. Note that California, Minnesota, and Washington may still require special handling or drop-off procedures for disposal of hardened paint waste regardless of physical state. Always verify local disposal regulations before discarding treated material.

Key Features

• Hardens up to two-thirds of a gallon of latex paint per 3.5 oz packet
• Converts liquid latex paint to solid for standard waste disposal
• Absorbs latex paint spills for fast containment and cleanup
• Single-use packet format minimizes handling and measuring
• State-specific disposal rules may apply in CA, MN, and WA

Compatibility

Designed for use with water-based latex paints. Not intended for oil-based paints, stains, or solvent-borne coatings.

Installation Notes

No tools or licensed trade certification are required to use this product. Pour the hardener directly into the paint container or onto the spill and allow adequate time for full solidification before disposal. Keep out of reach of children and avoid contact with eyes or skin during use. Confirm applicable local, state, and municipal solid waste regulations before disposing of hardened material, particularly in California, Minnesota, and Washington.

Technical Specifications

• Net Weight per Packet: 3.5 oz
• Package Weight: 4 pounds
• Treats Up To: two-thirds gallon of latex paint per packet
• Unit of Measure: Each
• Package Quantity: 12

Standard Information

• Brand: RUST-OLEUM
• Manufacturer Part Number: PH3512