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Roscoflamex PA Paint Additive

Roscoflamex PA Paint Additive

by Rosco
SKU
$35.00 - $35.00
$35.00
$35.00 - $35.00
$35.00

Roscoflamex PA is a clear, un-pigmented additive that turns most water-based paints into a flame-retardant coating. Mix one full 8 oz jar into a single US gallon (3.79 L) of latex or vinyl-acrylic paint to form a barrier that slows flame spread along the painted surface—without changing color or finish.

(No external sources required; details reflect manufacturer specifications.)

Key Features & Benefits
  • Surface barrier: Creates a flame-retardant paint film—does not change the inherent flammability of the substrate.
  • Clear, un-pigmented: Preserves your paint’s color, sheen, and working properties.
  • Easy dosage: One 8 oz jar per 1 gallon of compatible water-based paint.
  • Wide compatibility: Most latex/vinyl acrylic paints, primers, scenic paints, and acrylic glazes (see list below).
  • Compliance: Tested to ASTM E-84 Class A; approved by the California Fire Marshal.
Compatibility & Mix Ratios
Do not use with metallic paints. Metal pigments may react and tarnish/corrode.

Standard mix: Add one 8 oz jar Roscoflamex PA to one US gallon (3.79 L) of paint. Mix thoroughly.

Rosco Supersaturated: Add one 8 oz jar to one quart of undiluted Supersaturated, then dilute that mixture at least 1:1 with water before use. Mix thoroughly.

PA compares to the original P50. Do not intermix old and new Flamex products.

Compatible uses include:

  • Latex house paints (interior/exterior as paint allows)
  • Tinted latex paints
  • Latex primers
  • Rosco Scenic paints
  • Clear flat or gloss acrylic glazes
  • Vinyl & acrylic water-based mural paints

Always test with your specific paint for compatibility and finish.

Coverage & Film Thickness

Coverage: 8 oz PA mixed into 1 gallon of paint treats ~300 sq ft (28 m²), per the paint manufacturer’s guidelines.

Critical requirement: The dry paint film must be ≥ 4 mil (0.004") thick. Thin or incomplete films will not provide an effective barrier.

Application
  • Apply by brush, roller, or sprayer per the paint manufacturer’s instructions.
  • Ensure a continuous, uniform film and meet the 4 mil dry-film minimum.
  • Where practical, treat the substrate itself using an appropriate Roscoflamex product; PA is not a substitute for substrate treatment.
Certifications & Testing
  • ASTM E-84 Class A (surface flame spread rating).
  • Approved by the California Fire Marshal.
Storage & Handling
  • Store Flamex products in non-metallic containers.
  • If metal sprayers are used, clean thoroughly after use, including nozzles and accessories.
  • Avoid metal buckets/paint cans where possible.
Important Disclaimer

Read instructions carefully before use. Rosco offers Flamex products in good faith but without guarantee, as materials and application conditions are beyond their control. Determine suitability for your intended use and always test first.

Part Number & Size
  • 150 079PA 0008 — Roscoflamex PA Latex Paint Additive, 8 oz jar