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Polyester Gel Coats

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Overview



These polyester gel coats can be used as the surface of new fiberglass parts layed up in molds or used in the repair of gel coat surfaces on fiberglass parts. On surface repairs, the gel coat must be sealed to fully cure. PVA can be used to seal the gel coat.
   
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Reviews

works well and nice finish. would be nice to be able to purchase an unwaxed version

Steve L Verified Purchase

WHITE GEL COAT W/ CATALYST QT

January 14, 2022

Great stuff, always consistent

Steve L Verified Purchase

WHITE GEL COAT W/ CATALYST QT

September 8, 2021

Great product does what it should

Steve L Verified Purchase

GEL COAT WHITE PINT W/CATALST

August 4, 2021

Brian S Verified Purchase

GEL COAT WHITE PINT W/CATALST

May 26, 2021

Excellent product performs as described. Applied two layers of gel goat

Stephen L
March 16, 2021

Can I use this as a roll on product

Marine
May 12, 2020

Paint came in appropriate packaging on time, but there arent any instructions included for the paint to catalyst ratio.....so I havent applied it.

Adrian
March 30, 2017

Q&A

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What ratio do I mix the Polyester Gel Coats with?

Per the supplier: the ratio is 2% by volume or 10cc's per pint to give you a starting point.

Q: Is the gel coat supplied as a two part mixture?

Yes, the gel coat comes with the catalyst.

Q: Can this polyester gel coat be used as the surface for an epoxy part lay-up or is it only compatible with polyester lay-ups?

No, this is only compatible with polyester lay-ups. We can special order the epoxy lay-up version. Please contact sales and reference vendor # 06481 and vendor part # ES-221-Q for current price and lead time.

Q: Can this be used as the surface of a mold?

This is not a tooling gel coat, but it can be used.

Q: Do these polyester gel coats include wax for curing?

Wax is not needed for this gel coat, it will cure with a hard surface. It does require MEKP to catalyze it. We do offer surface curing agent, 01-07100, which is used with polyester resin that does not already have wax mixed in the resin.

Q: is this a sprayable product? What tip size/air pressure is recommended?

Yes, this is sprayable. 2.0-2.5 is most common, based off the gun, HVLP can be 35-59 psi.

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