View Full Version : Glass/Gel Coat Advice

04-12-2010, 09:25 PM

I have read many post on the gel coat repair process with the Spectrum Color patch kit.

I began my repairs this afternoon, but have run into a snag. The area of exposed fiberglass (see pic) is soft in the center. I am able to press my fingernail into it. This weak area is small, perhaps .25 an inch long if that.

Did water get in and damage the mat? Can I sand it down a bit and apply resin?

Any advice?


04-13-2010, 09:01 AM
Well, this morning I removed as much as the soft glass as I could. I then used a fiberglass repair kit and laid in a very small amount of fiberglass mat and resin. It is curing now.

If it works, I hope to sand it and then use the Spectrum color kit for the gelcoat. If not, I may try a small amount of epoxy in that area.

04-13-2010, 10:29 AM
As long as you removed the soft stuff you should be fine.

04-13-2010, 01:24 PM
Great topic - going to begin my repairs w/ Spectrum. Just had a very unpleasant experience w/ BoatersWorld trying to order their kit. Called then went to their chat - got their reps somewhere offshore - in both cases, they couldn't locate this product although it's shown on their site??

Where did you purchase your Spectrum kit?

04-13-2010, 02:26 PM
Try direct, http://www.spectrumcolor.com/contact_us.htm

04-13-2010, 02:47 PM
Try direct, http://www.spectrumcolor.com/contact_us.htm

Someone posted that if you get the custom match color it's minimum 1 gallon at $220. Yikes!

04-13-2010, 03:27 PM
I ordered the Spectrum Kit last year via their website.

I will post pics of my progress....

Got home and began sanding the area, all is well except the soft area extended a bit further to the left. I have since repaired that and am waiting for it to cure so I can begin sanding again..

04-14-2010, 07:03 PM
All ready for gelcoat but when I went to open the Spectrum patch kit, it was all dried up.

Never been opened.

Of course they are closed for the day when I try to call.

04-14-2010, 09:18 PM
You must repair the damaged fiberglass before applying gelcote. Grind off all of the weak, saggy glass until good glass appears. Then, grind the gelcote around the area so that you have a beveled edge. Clean everything with acetone. Then brush on a good epoxy resin over the fiberglass if the damage was thin. If the damage was deep, then mix in some West 404 or cut tiny shreds of fiberglass mat and mix it into the resin. Once that is cured, wash it with soap and water. Then use a 36 grit grinder to knock down the high spots and level the area for the gelcote.

03-07-2011, 12:00 PM
Was reading through this post which got my curiosity up for more information and then found this web site very good information for anyone considering any fibreglass repairs