Evercoat Everglass Fiberglass Reinforced Body Filler 32 fl oz — Waterproof, High-Strength

Evercoat Everglass Short Strand Fiberglass Reinforced Filler is a waterproof, high-strength body putty formulated with short fiberglass strands to repair holes, rusted metal, seams, and damaged fiberglass.

Built for automotive and marine repair, this 32 fl oz Evercoat Everglass formula combines a polyester-based filler with chopped fiberglass reinforcement to increase tensile strength and crack resistance. It bonds to steel, aluminum, and fiberglass substrates, making it a go-to choice when a standard polyester filler needs extra durability. The material sands smoothly after curing and accepts primer and topcoat for a professional finish.

How does Evercoat Everglass perform on rusted or perforated metal?

The short fiberglass strands in Everglass add internal support that helps bridge holes and thin, rusted panels. When paired with proper surface prep and a backing if needed, the filler resists shrinkage and provides a stable core for sanding and finishing.

• Forms a reinforced layer that fills holes and gaps
• Adheres to cleaned, sanded steel and aluminum
• Reduces risk of cracking compared to non-reinforced putty
• Sands to a shape that accepts primer and paint

What surfaces and repair types is this product best suited for?

Evercoat Everglass is engineered for versatility across metal and composite substrates. Use it for automotive body panels, fiberglass boat repairs, seam filling, and patching deteriorated areas where added strength matters.

• Steel and aluminum body panels
• Fiberglass hulls and structural parts
• Seam and joint reinforcement on vehicle bodies
• Spot repairs where substrate stability is compromised

How do you apply and finish the fiberglass reinforced filler?

Application follows standard polyester filler procedures: clean and abrade the surface, mix filler with the recommended catalyst, and apply with a spreader. After cure, shape with coarse then fine sanding, then prime before painting to ensure adhesion and a uniform appearance.

• Degrease and remove loose rust or paint; sand to a keyed surface
• Mix filler and catalyst in small batches for workable pot life
• Apply in layers for deep repairs, allowing full cure between coats
• Sand progressive grits and seal with a quality primer

Will this product hold up in wet conditions and exterior environments?

Everglass is described as a waterproof filler and resists moisture once fully cured, making it suitable for exterior repairs and marine use. Proper surface preparation and topcoat protection are still recommended for long-term exposure and UV protection.

• Cured material resists water penetration for durable patches
• Works well on boats and exposed vehicle areas with correct finishing
• Topcoat and primer help prevent weathering and UV degradation
• Not a substitute for structural welding or original structural members

Who is this for: Evercoat Everglass Short Strand Fiberglass Reinforced Filler is aimed at professional body shops, restoration hobbyists, and boat owners who need a tougher alternative to basic polyester putties. It’s useful when repairing perforations, restoring damaged fiberglass parts, or reinforcing seams where extra strength and waterproofing are required. For best results, combine with correct surface prep, backing where necessary, and a quality primer and paint system.