| Posted by Tony Mercer on July 21, 1998 at 11:04:52: | |
|---|---|
| In response to Re: Which one is better? Tub-Showers... | |
|
:Kelly, I'm probably a little late for you now. I have manufactured fibreglass baths for 15 yrs. The crazing could have been caused in the factory during de-moulding, or in transit if badly packed, or by you if you impacted the back of the moulding whilst fitting. The important thing is that because the cracks go completely through the gelcoat (should be about 0.7mm thick),they will re-appear if they are just gelcoated over. They should be veed out to the substrate then filled, sanded and polished using the same material, otherwise colourmatch will be poor. The porosity can be a real problem. It is usually caused by TOO MUCH CATALYST in manufacture.This is usually a very tiny bubble evident right thru the gel. In other words, if you try and rub them out there's more underneath. Spraying a full coat of gelcoat over, sanding and polishing should fix. if the porisity is large but sparse, its often caused by moisture. These can be cleaned out with the point of a drill and treated like the crazing. |
|
| Replies to this post |
| There are none. |