U-POL
U-POL MXM30 Maximum Standard Hardener 1 qt Can Clear 4:1 Mixing for Clearcoat
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Hazardous material · Liquid
Liquid hazmat ships ground-only via UPS/FedEx with a per-item carrier surcharge applied at checkout.
Shipping restrictions apply
Ground freight only (UPS/FedEx). Cannot ship via Air, USPS, or to PO boxes. APO/FPO addresses excluded.
WARNING: Cancer & Reproductive Harm
California Pro65 Warning: Cancer
Tap for details → P65Warnings.ca.gov
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Overview
Built for the booth.
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%
- Two hardeners - standard and slow
How to Use
For spot or multi panel repairs
- Prepare the substrate (e-coat or OEM) ensuring it is clean, dry, and free of contaminants.
- Mix U-POL® Maximum™ MXM30 Standard Hardener with the recommended clearcoat activator at the standard application ratio; follow the activator's temperature guidelines.
- Apply the first coat evenly using a spray gun or appropriate applicator. Allow the coating to dry as specified by the clearcoat system before proceeding.
- Apply the second coat in the same manner. After the final coat, allow the finish to cure according to the clearcoat's recommended cure schedule.
Compatibility
Compatible paint systems: Solvent, Clearcoat.
Specifications
| Part No. | MXM30 |
|---|---|
| Product Line | UPO |
| Standard/Approvals | California Pro65 Warning: Cancer |
| Application | For spot or multi panel repairs |
| Manufacturer | U-POL |
| Trade Mark | Maximum™ |
| UPC | 5010796112547 |
| Brand | U-POL® |
| Rubberized | No |
| Solids Content | 26.03% |
| Color | Clear |
| Container Size (qt) | 1 |
| Container Type | Can |
| Form | Liquid |
| Mixing Ratio | 4:1 |
- Mix Ratio
- standard application
- VOC
- 375 g/L
- Application Temperature
- as per the activator selection table
- Shelf Life
- 2 years (sealed original container)
- Compatible Substrates
- e-coat, OEM
- Number of Coats
- 2
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 substrates is U-POL® Maximum™ MXM30 Standard Hardener compatible with?
The hardener is formulated for use on e-coat and OEM primer systems.
How many coats of clearcoat can I apply with this hardener?
It is designed for a two-coat clearcoat application.
What personal protective equipment is required when handling this product?
Wear eye protection, chemical-resistant gloves, protective clothing and a respirator as indicated on the SDS.
Can I sand or paint over the cured hardener?
After curing, the surface can be sanded and painted in accordance with standard clearcoat finishing procedures.
Documents & Safety
Warning - This hardener is highly flammable and toxic by inhalation, ingestion, skin contact, and eye exposure. It can cause serious burns to skin and eyes, respiratory irritation, organ damage, and has carcinogenic potential. Use only in a well-ventilated area with appropriate protective equipment: safety goggles or face shield, chemical-resistant gloves, full-length protective clothing, and a suitable respirator. Always refer to the full SDS before use.
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.
Cure & dry schedule
Timing at 77°F
Pot life
7 - 8 hours
Flash
2 - 5 minutes
Tack free
< 20 minutes
Through dry
16 hours
Force-dry
30 minutes @ 140°F
Polish
16 - 24 hours
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 2–3 even coats, flashing between each.
5Let cure fully before sanding, buffing, or assembly.
Specifications
Full data
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 — 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 1–2 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 MXM30. Use this number when cross-referencing against TDS, SDS, or legacy supplier catalogs.
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