• Strong bond
  • Exceptional crack resistance
  • Flexible gel time
  • Great for bonding small and large fiberglass parts together
  • High tensile and flexural strength
  • Low shrinkage and exotherm
  • Ships within one business day


100% MONEY


Sku: 0206105200108

Fiberglass Warehouse Structural Polyester Putty is an industry game-changer, enabling both professionals and DIY enthusiasts to execute great bonding, repair applications, and more with unparalleled ease and durability.

Key Features:

  • High-Strength Bonding: Specifically formulated for structural bonding which makes critical repairs and constructions worry-free.
  • Versatile Use: Bonding- Ideal for boat hull to deck attachments, stringer to hull bonding, and connecting bulkheads. Also perfect for securely bonding composite, fiberglass, uncoated metal, and wood surfaces.
  • Repairs and Construction- Great for filling holes, cracks and voids as well as radius forming and filleting.
  • Easy Application: Mixed with MEKP catalyst, this putty provides no sagging and no shrinking making it a straightforward process for users of all skill levels.
  • Fast Setting & Waterproof: Quick curing time coupled with a waterproof finish ensures your repairs stand the test of both time and elements.
  • Sandable: After the curing phase, easily sand the material to your desired finish and top off with a gel coat, waxed resin or a PVA for a hard tack free finish.
  • Thixotropic Properties: Ensures ease of application with perfect positioning, helping you to achieve flawless joins and fillets.

For best results, prepare surfaces with sanding followed by cleaning with acetone. Make sure the putty and room temperature is between 70-95°F while working and during curing. Follow up with a wax topcoat such as a waxed resin, waxed gel coat or Air Dry coating. A surface seal or PVA can also be used for a hard, tack-free finish. With negligible shrinkage and no sagging, Structural Polyester Putty ensures a smooth, professional-looking repair that will last.

However, note that our putty is not suited for parts that experience significant flex or expansion, and it is not intended for cosmetic-only fixes.

Whether you're reinforcing the sturdy framework of a vessel or making vital repairs, trust Fiberglass Warehouse Structural Polyester Putty to deliver the strong, reliable bond that your project deserves.

Prop65 Warning Icon WARNING: This product can expose you to chemicals including Styrene which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov


Customer Reviews

Based on 1 review

Great product, fast shipping, competitive pricing. I've continued to order from Fiberglass Warehouse for years!