PRO Block
Semi-Synthetic Sealant
SOCO Pro-Block is a semi-synthetic sealant especially formulated to seal leaking gate and ball valves with downstream seats. It has high metal adhesion to lubricate and seal gates as they enter the body cavity.
This product is only available for use by certified companies.
Available in these sizes:
1 gallon
5 gallon
Other sizes available on request
Typical Characteristics
| Title | Value |
| Appearance | Black, tacky, grainy |
| NLGI | 3 |
| Penetration | (ASTM D217) 220-240 |
| Worked penetration | 0x (ASTM D217) 220-240 |
| Base oil | Mineral oil/synthetic blend |
| Base oil viscosity | 143 cSt at 100°C |
| Base oil viscosity | 11 cSt at 40°C |
| Base oil viscosity index | 40 |
| Base oil pour point | -10°F (-23°C) |
| Solids content | PTFE |
| Additives | EP, antioxidant and corrosion inhibitors |
| Specific gravity | 1.0 |
| Density (lb/gal) | 8-8.5 |
| Dropping point (ASTM D566) | >500°F (260°C) |
| Flash point | >400°F (200°C) |
| Temperature range | Te-10°F – 350°F (-23°C - 177°C |