| 摘要 |
<p>New gel coat composition, in particular new marine gel coat compositions, a process for their manufacture as well as their use to coat surfaces of articles exposed to light, water and solvents. The gel coats incorporate a precipitated silica having
- A BET surface of from 150 to 250 m 2 /g
- A SiO 2 content of more than or equal to 98.5 % by weight
- A Na 2 O content of less than or equal to 0.5 % by weight.</p> |
