Removing Gorilla Wood Glue from Gelcoat!

Molteni

Molteni

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Removing Gorilla Wood Glue from Gelcoat. We've tried petrol and white spirit to no avail.

Any tips gratefully received

Mike

ps Don't even ask how it happened !
 
Try heating gently with a heat gun and then scraping with a not-too-sharp cabinet scraper (not a putty knife). I believe it softens at a lower temperature than gelcoat. If it is in the non-skid, that is more labor intensive. Then acetone to remove the last trace.

You can try acetone, soaked in a rag and left for a few minutes. That may soften it enough to scrape.
 
Gorilla Glue is a water activated polyurethane adhesive and acetone will soften it and make it easier to scrape off.

If it’s on an area of smooth gel coat then you should find that dabbing on some 100% acetone and then carefully sliding a sharpened putty knife underneath will shift it but be careful not to nick the gel coat.

You may need to finish off with some fine wet sanding, rubbing compound, polish and elbow grease!

Gorilla Glue is great stuff but a pain to remove from where you don’t want it once it’s dry.
 
You can buy foam remover from builders merchants or upvc profile suppliers, designed to clean polyurethane foam guns it may also help remove the hardened stuff.
 
HughClayton said:
Gorilla Glue is a water activated polyurethane adhesive and acetone will soften it and make it easier to scrape off.

If it’s on an area of smooth gel coat then you should find that dabbing on some 100% acetone and then carefully sliding a sharpened putty knife underneath will shift it but be careful not to nick the gel coat.

You may need to finish off with some fine wet sanding, rubbing compound, polish and elbow grease!

Gorilla Glue is great stuff but a pain to remove from where you don’t want it once it’s dry.
Click to expand...

Not a putty knife. A scraper. Too easy to gouge the gelcoat. Many types, some with curved blades to match the deck.

1659562065383.png
 
PU glue is a common glue used in modelling for its lightness and safe formula for foams etc. The question of removing excess particularly once cured creates many threads on model forums.

Generally a sharp box cutter knife / scalpel blade for removing most of the glue down to the very thin layer that is adhered to surface. If material glued is safe for Acetone - then repeated application of Acetone soaked swabs ... which keeps the Acetone in place for minutes. Between swabs - careful use of blade to 'ease' the glue away from the surface.
You can of course use a coarse file to reduce the bulk ... taking care not tp harm the surrounding / underneath surface.
If the Acetone is not successful - it really does take persistence ... then careful selection of sandpaper grades to remove and if such as Gelcoat - final use of polishing medium to try restore gloss.

I use PU as bedding material when fastening items to GRP on my boat. Once PU is near cured and I can 'cut' with sharp blade any excess ... it usually lifts away from Gelcoat due to the 'Gloss' surface. But once fully cured - then I use the blade to cut around the fitting and then carefully use the blade to work the edges to lift the PU away.

There is no wonder instant solution for this.
 
Refueler said:
PU glue is a common glue used in modelling for its lightness and safe formula for foams etc. The question of removing excess particularly once cured creates many threads on model forums.

Generally a sharp box cutter knife / scalpel blade for removing most of the glue down to the very thin layer that is adhered to surface. If material glued is safe for Acetone - then repeated application of Acetone soaked swabs ... which keeps the Acetone in place for minutes. Between swabs - careful use of blade to 'ease' the glue away from the surface.
You can of course use a coarse file to reduce the bulk ... taking care not tp harm the surrounding / underneath surface.
If the Acetone is not successful - it really does take persistence ... then careful selection of sandpaper grades to remove and if such as Gelcoat - final use of polishing medium to try restore gloss.

I use PU as bedding material when fastening items to GRP on my boat. Once PU is near cured and I can 'cut' with sharp blade any excess ... it usually lifts away from Gelcoat due to the 'Gloss' surface. But once fully cured - then I use the blade to cut around the fitting and then carefully use the blade to work the edges to lift the PU away.

There is no wonder instant solution for this.
Click to expand...
All very interesting but Gorilla wood glue is a water resistant PVA glue.

What do you recommend for water-resistant PVA.

.
 
VicS said:
All very interesting but Gorilla wood glue is a water resistant PVA glue.

What do you recommend for water-resistant PVA.

.
Click to expand...


Suggest you go back and check ... these two bottles have same product ... but the Bison is cheaper ...

xl34pol.jpg


Gorilla Glue >>>>>

Gorilla Products - Glues, Tapes & Sealants | Gorilla Glue

Gorilla Glue has made its advertising on it being 'strongest glue in the world' ..... a Polyurethane based moisture activated adhesive.

Sold in two forms : White (Interior grade) .... Brown (exterior grade).

I don't see any mention in first post about PVA .... even post #4 says PU glue ....

When it comes to PVA ... do people really need info to remove such a weak glue ??? PVA ? Hot water treatment and a good rub ...

PU ... that's a different ball game altogether.

Request to OP ... please say which glue ....
 
Refueler said:
Suggest you go back and check ... these two bottles have same product ... but the Bison is cheaper ...



Request to OP ... please say which glue ....
Click to expand...

You are the one who needs to check

The original Gorilla glue is PU but Gorilla Wood glue is PVA. At least that's what their technical data sheets say.

The OP says Gorilla Wood glue in the thread title and in #1.

1659605721934.png

1659605808976.png
 
Patronising .....

see my last sentence in that post and repeated for your benefit :

"Request to OP ... please say which glue .... "

I find it strange that anyone would ask how to remove a simple PVA from a hard surface ... not exactly rocket science ... most schoolkids have spilt PVA .. being basically white paper glue !

Go out into wide world and say Gorilla Glue to people and I am sure the first thought will be their PU glue .... its the glue that they push most in all their marketing ....

I hope OP has managed to solve his problem ....
 
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