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Pro-grade auto-body supply ยท Any quantity ยท 13,000+ SKUs in stock
13,000+ pro-grade SKUs in stock
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U-POL

U-POL Maximum MXM31 4:1 Slow Hardener,1 qt, Liquid, Clear

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$20.62
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Overview

Built for the booth.

1 US QUART MAXIMUM 4:1 STANDARD HARDENER

Why Pros Choose U-POL UPO

  • Uses European quality resins
  • Crystal clear finish
  • Excellent gloss retention
  • It's easy to apply with excellent flow and non-sag properties
  • Hardens rapidly to give a durable, UV resistant finish, Once cured it can be easily polished
  • Can be used for cut in, spot, panel and multi-panel repairs (up to 3)
  • No die back and no solvent pop
  • Air dry or low bake
  • Can be reduced 5 to 10%

Compatibility

Compatible paint systems: Solvent.

Specifications

Technical specifications for U-POLยฎ Maximumโ„ข MXM31 4:1 Slow Hardener,1 qt, Liquid, Clear
Part No. MXM31
Product Line UPO
Manufacturer U-POL
Trade Mark Maximumโ„ข
UPC 5010796112851
Brand U-POLยฎ
Rubberized No
Solids Content 33% Base, 31.6% Mixed
Color Clear
Container Size (qt) 1
Form Liquid
Mixing Ratio 4:1

About U-POL

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

Frequently Asked Questions

What size does U-POL UPO come in?

This listing ships U-POL UPO in a 1 (QT) container. Check the autofxmart catalog for other sizes and bulk pricing.

What is the mix ratio for U-POL UPO?

U-POL UPO uses a mix ratio of 4:1. Always measure activators and reducers accurately to maintain film properties and pot life โ€” deviating from the ratio can cause adhesion or curing problems.

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 1โ€“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 MXM31. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.

Documents & Safety

Why Buy from autofxmart

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

Mix & coverage calculator

Locked to this product's ratio of 4:1 (clear : hardener).

Clearcoat to spray
5L
Your batch4:1
Clearcoat5
Hardener2.5 L
Ready to spray7.5 L
Cure & dry schedule

Timing at 77ยฐF

Pot life
7 - 8 hours
Flash/coats
2 - 5 minutes
Tack-free
< 20 minutes
Recoat
Less than 20 hours
Polish
16 - 24 hours
Force-dry
30 minutes @ 140ยฐF
How to apply

Steps

1Clean and degrease the surface, then scuff as needed.
2Mask off surrounding panels and trim.
3Mix to the product's ratio and strain.
4Apply 2โ€“3 even coats, flashing between each.
5Let cure fully before sanding, buffing, or assembly.
Specifications

Full data

BrandU-POL
Part #MXM31
UPC5010796112851
Application1 US QUART MAXIMUM 4:1 STANDARD HARDENER
Size1
ColorClear
OriginUS
ConditionNew
Trade MarkMaximumโ„ข
Frequently asked

Good to know

This listing ships U-POL UPO in a 1 (QT) container. Check the autofxmart catalog for other sizes and bulk pricing.
U-POL UPO uses a mix ratio of 4:1. Always measure activators and reducers accurately to maintain film properties and pot life โ€” deviating from the ratio can cause adhesion or curing problems.
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 1โ€“2 days for carrier pickup.
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.
The MPN for U-POL UPO is MXM31. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.

What Our Customers Say

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