
FS-R(Resilient High Density Silicone Elastomer) is commonly used as a bio-shielding refractory caulking material. FS-R consists of two components A and B. The cured product (A+B) is durable in application and the radiation shielding effect is equivalent to that of concrete of the same thickness. It is mainly used for biological shielding and plugging of mechanical pipelines with large lateral and vertical displacements.


Product advantages:
Biological shielding;
Non-toxic smoke;
Over 60 years lifetime;
Water-tight, Smoke-tight;
Radiation resistance;
Resistant to Design Basis Accident( DBA );
No halogen, sulfur or other toxic substances;
Excluding basic and essential chemical elements: copper, lead, zinc, cadmium, tin, antimony, mercury, bismuth and other low-melting-point metals, and their alloys or compounds;
Seismic resistance.
Installation instructions:
Clean the opening;
Stir components A and B separately for about 5 minutes;
Add components A and B to a container. Mix components A and B at a weight ratio of 1:1 at room temperature for 5 minutes;
Pour the well-mixed liquid into the openings and wait for it to cure.

Test items | Technical specifications | ||
Before curing | Component A | Appearance | Dark grey, homogeneous ,viscous liquid |
Density (25 ° C ) | ≥ 2.4g/cm3 | ||
Component B | Appearance | Dark grey, homogeneous, viscous liquid | |
Density(25 ° C) | ≥ 2.4g/cm3 | ||
Storage temperature | 0 ° C to 32° C | ||
Transportation temperature | 0 ° C to 32° C | ||
After curing | Appearance | Dark grey uniform elastic rubber | |
Density | ≥ 2.4g/cm3 | ||
Operating temperature range | -20 ° C to 70 ° C | ||
Tensile strength | ≥ 0.12MPa | ||
Elongation at break | ≥ 150% | ||
Shore hardness | 5 Shore AO to15 Shore AO | ||
Fire resistance | Fire integrity (E) ≥ 2h, Fire insulation (I) ≥ 2h | ||
