Product Name:Flame RetardantGelcoat HS - LFI7035S
1. Brief Introduction:HS-LFI7035S Gelcoat is an advanced intumescent flame retardant coating, formulated with Isophthalic-adipic acid unsaturated polyester resin as its base.
Tailored for spray application, this pre-promoted gel coat is perfect for FRP surfaces demanding superior flame resistance.
.Ideal for use in
rail transit systems, wind turbine nacelle covers, ship accessories, and other applications where flame resistance is a critical requirement.
2. Features: · Superior construction performance;
· Exceptional flame retardant properties (high oxygen index, minimal smoke generation);
· Complies with fire protection standard UIC564-2 Class B;
· Excellent water and weather resistance.
3. Gelcoat Properties:
Gel time test using Curing Agent M-50 (AKZO) at 2%.
4 . Application Notes :1). Gently mix the gelcoat in the bucket before use to avoid high shear rates and air entrapment.
during mixing.
2). Optimal application temperature is between 18-25°C with humidity less than 80%. Ensure the mold
is polished and clean before gelcoat application.
3). Prepare the mold surface to be dry, clean, and oil-free.
4). Fully wax the mold surface (avoid silicone-containing release wax). Allow moisture to evaporate
from water-soluble release wax before spraying the gelcoat.
5). Use MEKP as the curing agent for gelcoat, generally 1-3% dosage.
6). Total gelcoat film thickness should be between 600 and 1000μm. Each spray layer should not
exceed 0.2mm. After solvent evaporation (2-3 minutes), spray to the desired thickness.
required thickness.
7). Check the gelcoat cure degree before starting lamination layers. Press your finger on the gelcoat film for 30 seconds. If no residue sticks to your finger but the film remains tacky, proceed with lamination.
5. Operation procedure:
Note: Spray with a paint spray can, maintaining air source pressure at 20psi and air flow at a minimum of 0.6 cubic meters per minute.
1). Prepare for spraying according to the application guide's requirements.
2). Apply a thin layer of easy polishing primer (no more than 0.2mm thick) on the original mold surface using thin layer and multi-pass methods. Wait for it to dissolve.After 2 minutes of evaporation, spray the next layer to the desired thickness. The primer will dry within 1 hour, at which point you can start sanding.
3). Perform dry sanding with 220-320 mesh sandpaper, followed by sanding with 600-1200 mesh water sandpaper, and then proceed to polish.
6. Storage:
1) To ensure the longevity and quality of our High Performance Urban Railway Gel Coat with Flame Resistance and Durability, avoid exposure to heat sources such as direct sunlight or steam pipes. Store in a dry environment at temperatures below 25ºC.
2) Maintain the integrity of the gel coat by keeping containers sealed to prevent moisture absorption and monomer evaporation. Extended storage outside of the recommended conditions can affect critical liquid resin properties, including viscosity and gel time.
3) During transportation, adhere strictly to the State Council's 'Chemistry Dangerous Articles Safety Management Regulations'. Our gel coat contains styrene monomer, making it both hazardous and flammable.
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