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Begel 8721 two component transparent flexible silicone Medical gel
- Solvent free two component material
- Transparent both before and after cured
- Platinum catalyzed curing system
- No by-products after curing
- Low viscosity before cured, easy to application
- Excellent flexibility, free from stress
- Extremely low oil exudation, good anti-poisoning
- By adjusting the mix rate of part A and part B, can adjust the gel adhesion
Begel 8721A/B is two-component transparent silicone elastomer catalyzed by platinum. After mixed, Part A and Part B will cure to flexible buffering removable material to stick with skin. This adhesive has unique physical property. It’s proper to be used in biomedical as bonding and self-adhesion material. This elastomer is made from PDMS catalyzed by platinum. Cure temperature range: from room temperature to 200 °C, won’t produce any by-products.
| PROPERTY | STANDARD/UNITS | VALUE of 8721 | |
| —- | —- | PART A | PART B |
| Material | —- | Polysiloxane | Hydrogen polysiloxane |
| Color | Visual inspection | Transparent Liquid | Transparent Liquid |
| Viscosity | 25°C, cps | 950±150 | 550±150 |
| Density | 25°C, g/cm3 | 0.99 | 0.99 |
| Viscosity of mixture | 25°C, cps | 800±150 | |
| Application temperature | °C | -60~200 | |
- Suitable for sticking with skin, used for wound stickers, Scar sheet, eye patch and Nipple cover
- Also for filling the cover bag of headrest, seat lumbar pad etc.
Mix Part A and Part B by 1:1 mass ratio, after evenly mixed, standing 10 minutes later, then pouring directly into the modules slowly along the walls of the implements, so as to reduce the bubbles happens
Still the potted article to let out the bubbles. It can be cured by heat, about 2~5 minutes under 120°C (depending on the thickness of gel). It needs about 6-10 hours to cure under room temperature.
- Vacuum defoaming can improve the performance of cured product.
- Seal the remaining products tightly after use.
- Low temperature will slow the curing speed; heat curing is recommended.
- It’s hard for SI2721 to cure if contact with sulfur, amine or Sn
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