Judging from this table, these kinds should actually be regarded as one kind, and their main performances are similar. There may be subtle differences in individual properties, such as adhesive strength, service temperature and viscosity.
703 silicone rubber
1, product use: the product adopts a new curing system with composite coupling agent as crosslinking agent. Compared with similar products at home and abroad, it has the advantages of better adhesion, longer shelf life and no pollution. It has been widely used in more than ten industries such as electronics, instrument aviation, chemical industry, light industry, machinery, household appliances, military industry and scientific research departments.
2. Product appearance: milky white viscous liquid
3. Product performance:
① Surface curing: 5-30 minutes, tensile strength: 1-2kV/cm2, temperature resistance: -60- 150℃, elongation: 250%, shear strength: 1kg/cm2, volume resistance; 2.5×101.3Ω/cm, dielectric constant: 3.4( 1MHX), breakdown voltage:16kv/mm.
② It can be made into black, gray and other colors according to user's requirements. This product is suitable for bonding, sealing, shockproof, potting and so on. Electronic components, optical instruments, chemical equipment, chemical pipelines, electric heaters, instruments, medical devices, can also be used to paste various signs, automobiles, televisions, solar energy and other seals.
704 silica gel
Product appearance: milky white and black viscous liquid
1. Product Description: 704 silicone rubber is a one-component room temperature vulcanized silicone rubber with good adhesion, high strength and no corrosion. It has excellent electrical insulation performance, sealing performance and aging resistance, and can be used for a long time in the range of -50-+250. Mainly plays the role of bonding, sealing, potting and fixing; Coating, etc.
Second, the typical usage:
The product can be used as sealing, bonding, insulating, moisture-proof and vibration-proof materials, and as bonding and sealing materials for electronic components, semiconductor equipment and electronic and electrical equipment; It can also be used as a sealing material for aircraft cockpit, instrument cabin and related parts in machinery manufacturing, and is an ideal elastic adhesive for aviation, electronics, electrical appliances, machinery manufacturing and other industries.
Third, the use of technology:
1. Clean the surface: clean the surface of adhered or coated objects to remove rust, dust and oil stains.
2. Glue coating: unscrew the rubber hose cover, install the plastic nozzle, open the nozzle with a blade according to the required size, and squeeze the glue solution to the position where glue coating is needed.
3. Curing: Put the painted parts in a stable place, and the curing process is from the outside to the inside. In 2~4mm hours (room temperature, relative humidity 55%), the glue will solidify to a depth of 2 ~ 4 mm, if the glue is deep, especially in the part that is not easy to detach in the air. The complete curing time will be prolonged, and if the temperature and humidity are low, the curing time will also be prolonged.
705 transparent silica gel
First, product appearance: 705 transparent silica gel color sticky.
Product Description: This product is non-toxic, solvent-free, pollution-free, corrosion-free, temperature -60-+200℃, room temperature curing, and has good transparency. Excellent electrical insulation and arc resistance, moisture-proof and shock-proof. Widely used in electronic components, instrumentation, chemical industry, light industry, machinery industry potting, wire and cable bonding and sealing.