533 Fiberglass Filler

533 Fiberglass Light Putty is a premium 2-component polyester filler engineered for professional repair work across diverse substrates. This lightweight formulation delivers exceptional strength through glass fiber reinforcement while maintaining superior sandability; curing to workable consistency in just 20-30 minutes. Its advanced polyester resin system bonds reliably to steel, aluminium, galvanised surfaces, wood, concrete, and fibreglass composites, even under tension and extension. The filler spreads smoothly, resists sagging on vertical applications, and withstands weak acids, solvents, water, and de-icing salts. Ideal for automotive, industrial, and construction applications requiring durable, low-maintenance surface restoration without secondary finishing layers.

What's unique:

• Weighs almost half of ordinary putty
• Does not create pores
• It is easy to sand, has high elasticity and excellent adhesive properties to different materials
• Can be easily sanded down to zero
• No need for additional fine putty application, can directly be overcoated with filling primer