Fiberglass wet sanding waxing issues

The Main Sand Box for bertram31.com

Moderators: CaptPatrick, mike ohlstein, Bruce

Post Reply
Chanse
Senior Member
Posts: 184
Joined: Oct 19th, '10, 11:33
Location: Wisconsin

Fiberglass wet sanding waxing issues

Post by Chanse »

Two seasons ago I wet sanded the bridge then applied 3M Super Duty. Buffed out with DeWalt variable speed.
Then Collinites #920 Cleaner and Collinite Fleetwax.
The result was not so good, kinda krappy, swirl marks high and lows spots.
So I got to do this over and do it right and I think start removing the old wax.
So how should I go about this? Im a little shy about the wet sanding not wanting to get
to far into the gel coat. Would I use a 1000, 1500, 2500 Grits? any info appreciated.
User avatar
CaptPatrick
Founder/Admin
Posts: 4161
Joined: Jun 7th, '06, 14:25
Location: 834 Scott Dr., LLANO, TX 78643 - 325.248.0809 bertram31@bertram31.com

Re: Fiberglass wet sanding waxing issues

Post by CaptPatrick »

Chuck,

Naptha will remove wax as will Dawn dish washing soap... Sanding only moves the wax around. Once clean, use a non-wax polymer sealant such as Meguiar's machine glaze.
Br,

Patrick

Molon labe
Chanse
Senior Member
Posts: 184
Joined: Oct 19th, '10, 11:33
Location: Wisconsin

Re: Fiberglass wet sanding waxing issues

Post by Chanse »

So Naptha, Then wet sand? No wet sand
or 3M Superduty? Then use Megular's Machine glaze.
No Wax?
User avatar
CaptPatrick
Founder/Admin
Posts: 4161
Joined: Jun 7th, '06, 14:25
Location: 834 Scott Dr., LLANO, TX 78643 - 325.248.0809 bertram31@bertram31.com

Re: Fiberglass wet sanding waxing issues

Post by CaptPatrick »

Chuck,

You shouldn't need to wet sand or even heavy compound. After cleaning the wax off you might want to use 3M Finess-It, then the Meguiar's Machine glaze. Wax is old technology...
Br,

Patrick

Molon labe
User avatar
Buju
Senior Member
Posts: 796
Joined: Jun 29th, '06, 09:11
Location: Key Largo, FL

Re: Fiberglass wet sanding waxing issues

Post by Buju »

Chanse, you got a pic of how bad thew swirls are?
If they were created with one of your lower grit sandpapers, you may need to get back in the paper, but hopefully not.

Another good compound is 3M Imperial. Imperial starts out aggressive and breaks down to a finer grit with use.
I don't know what the world may want,
But a good stiff drink it surely dont,
Think I'll go and fix myself...a tall one.
Post Reply

Who is online

Users browsing this forum: Bing [Bot], Google [Bot] and 459 guests