Gripclad provide Fibreglass Gritted GRATING for http://www.tarmac.com/marine/ see what the Chief Engineer had to say below.
Gripclad's GRP Grating is an excellent product and we shall be ordering some more in the future for our dredging vessels. We had recently carried out some repairs to a large pump, the impeller being over a metre across and we had no issues standing on the grating with a three man crew.
We are more than pleased with the product as it offers excellent anti-slip qualities.
Gripclad have provided us with GRP Gritted Grating for our Port Drag Head Gantry, Chute A Frame Platform, Stbd Walkways, Boiler box, bridge platform, port vent platform, screen box, boom conveyor areas and gimble platforms.
Here are some before and after pictures.