SHUANGYUAN SY-911 High Temperature Flame Retardant Adhesive

Q1: What type of adhesive is SY-911? What are its main applications?
A: Double-source SY-911 is a one-component organic silicone high-temperature flame-retardant sealant, belonging to a de-oligomerized neutral silicone sealant. It is specially designed for high-temperature conditions, fire resistance, electrical insulation, and equipment sealing. It is widely used for:
Kitchen stoves, fireplaces, high-temperature flue sealing
Electrical equipment, power supplies, transformers, wire harness fixation insulation
Industrial ovens, high-temperature pipes, flange joints
Fireproof doors, fireproof sealing, public area fireproof filling

Q2: What is the maximum temperature resistance? What are the long-term and short-term temperature resistances?
A: Long-term temperature resistance: -60℃ to +300℃; Short-term peak can withstand 350℃. It does not flow, does not soften, does not become brittle at high temperatures, and maintains elasticity and sealing force.

Q3: What is the fire resistance rating? How effective is the fire protection?
A: The fire resistance rating reaches UL94 V-0 level (the highest fire resistance level), it extinguishes flames on its own, does not burn, does not drip, and is not prone to spread when exposed to fire, effectively blocking the penetration of flames and hot smoke.

Q4: What are the curing methods and times?
A: Room temperature moisture curing (single-component):
Surface drying time: 5 to 30 minutes (25℃/50%RH)
Initial curing: 2 to 4 hours
Complete curing: 24 hours (surface layer)/ 48 hours (deep layer)

Q5: What are the performance parameters after curing?
A (typical values, 25℃):
Hardness: Shore A 45±5
Tensile strength: ≥ 2.5 MPa
Tear elongation: ≥ 280%
Volume resistivity: ≥ 1.0×10¹⁴ Ω·cm (excellent insulation)

Q6: Which substrates are it suitable for bonding? Which ones cannot be used?
A: Applicable: Aluminum, stainless steel, iron plates, glass, ceramics, refractory materials, engineering plastics (PVC, PBT, etc.).
Cautionary / Prohibited: Acid-sensitive stone (some marble), copper and copper alloys (easily blackened), galvanized parts (suggested to test first).

Q7: How is it different from ordinary silicone sealant and weather-resistant sealant?
A:
Ordinary silicone sealant: Temperature resistance is generally ≤ 150℃, non-flame retardant, prone to cracking and peeling at high temperatures
Weather-resistant sealant: Mainly for outdoor anti-aging, temperature resistance is usually - 40 to 180℃, flame retardancy is weak
SY-911: High-temperature + flame retardancy + insulation + elasticity in one, specifically designed for high-temperature fireproof scenarios

Q8: What are the construction precautions?
A:
Base material surface should be dry, clean, free of oil and dust.
Construction temperature: 5 to 40℃, humidity 40% to 70% is optimal.
The thickness of the sealant is recommended to be ≥ 3mm to ensure fire resistance and sealing effect.
Avoid rain, high humidity, and strong ventilation before curing.
It cannot be used in structural load-bearing parts, only for sealing, filling, insulation fixation.

Q9: Is it environmentally friendly? Are there any harmful substances?
A: No solvents, no halogens, low odor, neutral environmental protection, complies with RoHS environmental protection standards, does not contain formaldehyde, benzene, etc., construction is safe, use has no pollution.

Q10: Packaging specifications and shelf life?
A:
Packaging: 300ml / piece
Storage: 8 to 25℃, cool and dry
Shelf life: 12 months (unopened)