Master Flame Class A Fire Retardant 1 Gallon - Surface Protection

In this review of Master Flame - Class A Fire Retardant 1 Gallon, the bottom line is simple: this is a practical choice for contractors, set builders and property managers who need a tested, non-toxic retardant to reduce flame spread on porous surfaces. The product's biggest selling point is its documented safety performance - NFPA 255, 701 and ASTM E 84 testing that results in a Class A rating - which means it is intended for people who must meet code or want an added layer of protection on wood, fabrics, paper and other absorbent materials.

Key Features

• Class A Rated: Backed by NFPA 255, 701 and ASTM E 84 testing, the formula is designed to help prevent the spread of dangerous flames on treated surfaces.
• Multi-surface use: Suitable for wood, fabrics, paper and other absorbent materials so one product can protect a range of items around a set, workshop or facility.
• Non-toxic formulation: The water-based, eco-friendly formula contains no PBDEs or known toxic additives, reducing environmental and handling concerns.
• Ease of application: Customers report straightforward application when following directions, allowing treated materials to gain fire resistance without specialized equipment.
• Professional size: The 1 gallon container is convenient for small to medium jobs where multiple coats or reapplication may be required.

Who It's For

Master Flame Class A Fire Retardant is best for professionals and serious DIYers who need a tested, non-toxic treatment for porous materials used in theatrical sets, exhibits, temporary structures, stage scenery, or finishing wood projects. Its clear emphasis on compliance and safety testing makes it useful where meeting specific fire standards matters.

It is less ideal for users seeking a single-coat, permanent finish with strong adhesion on non-absorbent surfaces or for jobs that require a decorative topcoat with high chemical resistance. Those needing rust protection, metal adhesion, or an aesthetic coating should consider a dedicated product for those requirements.

Pros & Cons

Pros

• Works effectively to improve fire resistance on absorbent materials when applied as directed.
• Has credible testing (NFPA 255, 701, ASTM E 84) and a Class A rating for flame spread control.
• Non-toxic and eco-friendly formulation avoids PBDEs and common toxins, simplifying handling and disposal concerns.
• Available in a 1 gallon size useful for repeat applications and medium-sized projects.

Cons

• Coverage and adhesion can be mixed depending on substrate; some users report needing multiple coats for full effectiveness.
• Not formulated for rust resistance or protection of metal surfaces, so additional products are required for those uses.

Specifications

Product	Master Flame - Class A Fire Retardant
Size	1 Gallon
Test Standards	NFPA 255, NFPA 701, ASTM E 84
Class Rating	Class A
Suitable Surfaces	Wood, fabrics, paper, other absorbent materials
Formulation	Non-toxic, eco-friendly (NO PBDEs or toxins)

Our Verdict

For anyone who needs a verified, non-toxic fire retardant for porous materials, Master Flame Class A in a 1 gallon size is a sound, practical choice because of its documented testing and straightforward application. It represents good value for safety-conscious users, though those concerned with coverage, adhesion on difficult substrates, or metal protection should plan for extra coats or complementary products.

Frequently Asked Questions

Is this safe to apply indoors?
Yes. The formula is non-toxic and eco-friendly, but follow label directions and ensure ventilation during application.

What surfaces will it protect?
It is formulated for absorbent materials such as wood, fabrics and paper; it is not intended for non-porous metals without suitable primers.

Will one coat be enough?
Coverage varies by material; some users report multiple coats are needed for full performance, so plan accordingly.