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Lightweight Filler, 0.8 Gal - 0643

by U-POL
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Original price $76.36
Original price $76.36 - Original price $76.36
Original price $76.36
Current price $70.29
$70.29 - $70.29
Current price $70.29
Save $6.07 (7% off)

$99.00 away from free shipping!

A high quality two-part light weight polyester filler. It has a super creamy consistency with smooth easy application. Suitable for multiple substrates, it’s easy to sand with a high product removal and a fine finish which is pinhole resistant. U-POL is a registered trademarks of U-POL Ltd, an Axalta Coating…

TECTIUM™ Lightweight Filler is a professional-grade auto body filler designed for efficient panel preparation and repair work. This 0.8-gallon formulation delivers reliable performance across multiple substrate types, making it a versatile solution for collision repair shops handling diverse vehicle materials.

The filler bonds effectively to aluminum, galvanized steel, polyester, primer, SMC, and standard steel surfaces, eliminating the need for multiple specialty products. With a VOC content of 167g/l and a 5-year shelf life, this filler provides consistent workability while meeting regulatory requirements. The lightweight formulation reduces material weight while maintaining structural integrity for quality repairs.

Use appropriate respiratory protection and ensure adequate ventilation during application and sanding operations. Follow proper surface preparation protocols for optimal adhesion across all compatible substrates.

Why Pros Choose U-POL UPO

  • Super creamy formula
  • Smooth easy application
  • Ready to sand, prime and paint in 20 minutes
  • Multi-functional — excellent adhesion to multiple substrates incl. Galv and Aluminum
  • Tack-free finish
  • Easy to sand
  • Superior feather edge
  • Pinhole resistant

Compatibility

Compatible substrates: Aluminum.

Compatible paint systems: Polyester.

Specifications

Technical specifications for TECTIUM™ Lightweight Filler, 0.8 Gal
Part No. 0643
Product Line UPO
Manufacturer U-POL
UPC 0501079611442

About U-POL

U-POL delivers pro-grade refinish products including Raptor bed liner, Dolphin glazes, and Power Can aerosols used in shops worldwide.

Documents & Safety

Why Buy from autofxmart

  • Authorized distributor — authentic, factory-fresh stock.
  • Fast US shipping — most orders ship within 1 business day.
  • 30-day returns — buy with confidence.
  • Pro-shop pricing — bulk discounts available on request.
  • Expert support — questions? Email us at support@autofxmart.com.

In stock · Ships today

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Technical data

Specs, cure schedule & how-to

Cure & dry schedule

  1. Work time 4 min
  2. Sandable 20 min
  3. Cured 30 min

How to apply

  1. Sand to bare metal and clean the repair.
  2. Mix filler and hardener to one uniform color.
  3. Spread thin layers within the work time.
  4. Let set, then block-sand through the grits.
  5. Prime before applying topcoat.

Specifications

Brand
U-POL
Part #
0643
UPC
0501079611442
Application
A high quality two-part light weight polyester filler. It has a super
Size
3L
Origin
US
Condition
New

Compatible substrates

Aluminum

Frequently asked

What surfaces can U-POL UPO be used on?
U-POL UPO is compatible with Aluminum. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
How fast does autofxmart ship U-POL UPO?
Most in-stock orders for U-POL UPO ship the same or next business day from our US warehouse. Expedited options are available at checkout. Freight-class items may require an additional 1–2 days for carrier pickup.
Is this U-POL product genuine?
Yes. autofxmart is an authorized distributor of U-POL products. Every unit is factory-fresh, sealed, and backed by the manufacturer's standard warranty. If you have a concern, contact support@autofxmart.com and we will make it right.
What is the manufacturer part number (MPN) for U-POL UPO?
The MPN for U-POL UPO is 0643. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.