U-POL Fantastic Medium Depth Polyester Body Filler 3L W/ BPO Hardener + Spreader

U-POL Fantastic™ Medium Depth Polyester Body Filler – 3L with BPO Hardener + Spreader

Fantastic™ is a premium-quality, ultra-lightweight polyester body filler designed for the repair of medium and fine panel damage across a wide range of automotive substrates. Its creamy texture and innovative formulation make it exceptionally easy to apply, shape, and sand, helping to reduce process time and improve repair quality.
 
Key Features
Ultra-lightweight formulation for excellent handling and spreadability
Ideal for medium-depth and fine repairs on steel, aluminium, galvanised metals, GRP, and OEM finishes
Soft, smooth texture allows easy shaping with minimal drag
Superior sanding performance—quick to sand with minimal clogging
No shrinkage for a reliable, long-term repair
Pinhole resistant finish for better primer and paint adhesion
Non-porous surface for improved paint holdout
 
Mixing & Application
Mix Ratio: 2–3% BPO hardener by weight
Pot Life: 4–5 minutes at 20°C
Sandable Time: 20 minutes at 20°C
Recommended Grits:
Initial Sanding: P80–P120
Final Sanding: P180–P240
 
Surface Preparation
Clean the surface thoroughly with soap and water followed by a degreaser
Abrade the repair area using P80–P180 grit, depending on substrate
Remove all rust, loose paint, and contaminants
Ensure the surface is dry and dust-free before application
 
Compatible Substrates
Bare steel
Aluminium
Galvanised steel
OEM finishes (excluding thermoplastics)
GRP and SMC substrates
 
Packaging
3L tin
Includes BPO hardener and plastic spreader
 
Health & Safety
Contains styrene and polyester resins—use appropriate PPE
Ensure good ventilation during use
Avoid contact with skin and eyes
Dispose of waste in accordance with local regulations
Refer to SDS for full safety information