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Crown General NV |
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| QR |
Quick
Recovery : the foam recovers instantly after compression. This quality is mainly used as air and dust seal. |
| SR |
Slow
Recovery : the foam recovers slowly after compression, filling irregular
surfaces and gaps. Mainly used as waterseal at 30 % compression (or even less, in relation to its thickness, see technical data sheet). |
| BBS |
Ultra
Soft : as QR but with a softer, very smooth surface. |
| ES |
Extra
Sticking : particularly used in the glazing industry. |
| CC |
resistant
to a temperature of 100° C [212 °F] (normal grades resist
to +60° C). |
| NB |
Fire
resistant according DIN 4102 B2. |
| FR |
Fire
resistant according FMVSS 302. |
| ST |
Standard
(density 220/250 and higher). |
| EH |
Extra
hard surface, Shore 00: 70-80. |
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