Product Name:Flame RetardantGelcoat HS - LFI7035S
1. Brief Introduction:HS-LFI7035S Gelcoat stands out as an intumescent flame retardant gel coat. Its foundation is an Isophthalic-adipic acid unsaturated polyester resin, offering a robust and versatile solution.
This gel coat, pre-promoted for convenience, is perfect for spray processes and ideal for FRP products requiring enhanced flame retardancy.
Widely applied in
rail transit systems, wind turbine nacelle covers, ship accessories, and other sectors with stringent flame retardant needs.
2. Features: · Exceptional application performance;
· Superior flame retardant capabilities (high oxygen index, low smoke density);
· Adheres to fire protection standards UIC564-2 Class B;
· Outstanding water and weather resistance.
3. Gelcoat Properties:
Gel time test: Curing agent M-50 (AKZO) 2%.
4 Application Notes: 1). Gently mix the gelcoat in the bucket before use. Avoid excessive high shear rates and ensure air entrapment is minimized
during mixing.
2). Ideal application conditions include temperatures between 18-25°C and humidity below 80%. Ensure the mold is
polished and clean before applying the gelcoat.
3). Prepare the mold so that the surface is dry, clean, and free from oil.
4). The mold surface should be fully waxed (avoid silicone-containing release wax). Ensure water-soluble release wax moisture evaporates before applying the gelcoat.
5). Use MEKP as the curing agent for the gelcoat (typically 1-3% dosage).
6). Ensure the total thickness of the gelcoat film is between 600 and 1000μm. Each spray layer should not exceed 0.2mm. Wait
2-3 minutes for solvent evaporation before applying to the required thickness.
7). Check the gelcoat's curing degree before starting lamination. Press your finger for 30 seconds on the gelcoat film. If there's no residue on your finger and the film remains sticky, you can proceed with the lamination layers.
5. Operation Procedure:
Note: Use a paint spray can, maintaining air source pressure at 20psi, and ensuring airflow is not less than 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 thickness) on the original mold surface using a thin layer and multiple passes method. 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, allowing you to start sanding.
3). Dry sand with 220-320 mesh sandpaper, followed by sanding with 600-1200 mesh water sandpaper, then proceed to polish.
6. Storage:
1) Ensure to store the product in a dry, cool place, away from any potential heat sources such as direct sunlight or steam pipes. Keep storage temperatures consistently below 25ºC to maintain optimal product integrity.
2) Always keep the container sealed tightly to prevent the absorption of moisture and minimize the loss of monomer. Note that storing the product outside the recommended conditions for an extended period can adversely affect critical properties like viscosity and gel time.
3) Adhere to the State Council's 'Chemistry Dangerous Articles Safety Management Regulations' during transportation. Given that the product contains styrene monomer, it is classified as hazardous and flammable, necessitating strict safety precautions.
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