U-Pol Products 0700 FIBRAL Glass Fiber Filler – 3 Liter
$59.89
Price: $59.89
(as of Oct 08, 2025 06:39:42 UTC – Details)
Short strand formulation allows it to be easily applied and sanded. Forms hard, durable surface. Very easy to sand, even after 24 hours. Non-sagging, even on vertical surfaces. Waterproof. Can be top coated with putty or directly top coated with paint.
Forms hard
Very easy to sand, even after 24 hours
Short strand formulation allows it to be easily applied and sanded
Customers say
Customers find this fiberglass filler to be of good quality, easy to work with, and functional. The material sands well and spreads easily, with one customer noting it bonds to almost anything when properly sanded. The durability and hardener content receive mixed feedback – while some find it strong, others report missing hardener, and one customer mentions issues with the lid not staying in place.
John T. –
In my opinion the best fiberglass filler made!
Fred’s easier than duraglass and is stronger because of the fibers it functions well. And is the best value for the money.
Kevin Parsons –
Fiberglass restoring
If I let my mechanic put this on my 61 and 63 Vette, great for fiberglass, restoring my classic corvettes,
Winston Woodward –
Spreads like butter. Awesome product
Wow this stuff is amazing. Itâs by far the easiest fiberglass to work with imo. I used it to patch a dashboard up and I will be using it for dent repair. It still easy to sand and work with after it fully cures. And it spreads easily. I couldnât ask for a better product
Deb –
Damaged product
Product arrived damagedCan top is ajarProduct oozing out
Dale –
Durable and Ease of Use
Why did you pick this product vs others?:I knew it to be a easy to use quality product.
Michel L. –
Excellent and very versatile product.
Easy to use and sands well. This stuff is very sticky and bonds to basicaly anything properly sanded and prepared. In my case, i used it to skim coat my car fiberglass body in order to evened the deeply gouged surfaces of the previous owners paint job. By doing so, i will use a very small amount of body filler on top of the Fibralite. I highly recommend this product.
Iggy71 –
GREAT SELLER
Excellent product, Upol products are Excellent Quality and easy to use Great seller communication and Super fast shipping.
trevor –
Good product… terrible packaging
Took the chance. Wasn’t lucky enough to get an undamaged can. I would swear the can was damaged before packaging. The box arrived in perfect condition. The can of filler not so much