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Anonymous
| Posted on Wednesday, April 09, 2008 - 10:59 am: | |
When to use one or the other? Advantages? Disadvantages? Cost? Uh-ohs? PS - GLASS FIBER REINFORCED GYPSUM vs GLASS FIBER REINFORCED PLASTIC |
Dave Metzger Senior Member Username: davemetzger
Post Number: 266 Registered: 07-2001
| Posted on Wednesday, April 09, 2008 - 11:56 am: | |
GFRG is for interior use only. GRFP can be used interior or exterior. GFRG must be painted. GFRP can be integrally colored or painted. Another option, in particular for exterior use (tho it also can be used interior) is glass fiber-reinforced concrete (GFRC). When I have specified this it has been integrally colored, tho I suppose it can be painted. |
William C. Pegues, FCSI, CCS Senior Member Username: wpegues
Post Number: 718 Registered: 10-2002
| Posted on Wednesday, April 09, 2008 - 05:20 pm: | |
I concur with Dave. Though, painting GFRP (plastic) can sometimes be 'iffy'. Adhesion can be a problem, and I strongly recommend adhesion tests prior to the spec being issued to assure the coating manufacturer is satisfied with the quality of the surface provided. And on his suggestion that glass fiber-reinforced concrete can be painted, definitely so. We did a project some years ago where we used the wonderful 'Verceram" product which was a glass fiber-reinforced ceramic panel. Now we are doing a building adjacent to this where they want to continue the use of the same panel design (Verceram was discontinued). We rejected the use of fiberglass due to our problems coating it in the past. If it was just a color, that would be one thing, but this is required to match a Duranar metallic 2 coat system. So, we are using the PPG Coraflon product on the concrete panels for a perfecct match to the PPG Duranar product on the curtain wall components. |
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