We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Clear liquid in a quart-size bottle with label

Rust-Oleum

Rust-Oleum 239503 Alkyd Accelerator Clear 1 qt

SKU CH-QPXQ-25MDT

Clear alkyd accelerator reduces drying time for 250 and 340 VOC alkyd enamels

  • ColorClear
  • Speeds alkyd enamel drying with 250 or 340 VOC formulas
  • Clear accelerator maintains original paint colour and finish
  • One-quart bottle sized for professional and DIY projects
  • Compatible with both 250 and 340 VOC alkyd enamels
  • Rust-Oleum 239503 formulation trusted for reliable performance

Rust-Oleum 239503 Alkyd Accelerator

This clear accelerator is formulated for use with alkyd enamels rated at 250 or 340 VOC. It is intended for professional painters and maintenance teams who need to speed up the drying time of compatible solvent-based coatings. The product comes in a one-quart bottle for convenient mixing.

Mixing and application considerations

The accelerator is added directly to the enamel before application using brushes, rollers or sprayers. Users must follow the enamel manufacturer's recommended mixing ratio to avoid film defects such as wrinkling or poor adhesion. Over-acceleration can reduce working time and lead to application issues on large surfaces.

Compatibility check before ordering

Verify that the alkyd enamel you plan to use carries a 250 or 340 VOC rating. This accelerator is not designed for water-based, acrylic or high-VOC formulations outside the specified range. Confirm local regulations allow the use of solvent-based accelerators in your area.

Highlights

  • Speeds alkyd enamel drying with 250 or 340 VOC formulas
  • Clear accelerator maintains original paint colour and finish
  • One-quart bottle sized for professional and DIY projects
  • Compatible with both 250 and 340 VOC alkyd enamels
  • Rust-Oleum 239503 formulation trusted for reliable performance

Specifications

BrandRUST-OLEUM
ColorClear

Questions about this item

How can I confirm the accelerator is working after mixing it with my alkyd enamel?

The enamel should dry noticeably faster than the standard recoat time printed on the enamel can, indicating the accelerator is active.

What comes in the package and what else do I need to purchase?

The package contains one clear 1 qt bottle of accelerator; you must separately buy compatible 250 VOC or 340 VOC alkyd enamel to mix it with.

Which version of this accelerator should I select for my project?

Model 239503 is the only version offered; it is formulated for both 250 VOC and 340 VOC alkyd enamels, so choose it whenever you are using either enamel type.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.