SEM
SEM 68422 MINI-MAX Low VOC Bumper Repair 1 oz Gray Cartridge
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Hazardous material · Liquid
Liquid hazmat ships ground-only via UPS/FedEx with a per-item carrier surcharge applied at checkout.
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Ground freight only (UPS/FedEx). Cannot ship via Air, USPS, or to PO boxes. APO/FPO addresses excluded.
WARNING: Cancer & Reproductive Harm
California PROP65 Warning: Cancer and Reproductive Harm
Tap for details → P65Warnings.ca.gov
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Overview
Built for the job.
Mini-Max™ bumper repair is a two component epoxy based filler for repairing small damage to bumpers and rigid or semi-rigid plastics.
SEM® MINI-MAX™ 68422 is a low-VOC, 1 oz cartridge bumper repair compound formulated for rapid panel restoration on plastic substrates and over primer. Designed for professional body shops, it provides a gray finish that blends with typical OEM colors after sanding and painting.
The material offers a 5-minute work time at 70 °F (21 °C), followed by a sandable window beginning at 15 minutes. Full cure is achieved in 1 hour under the same conditions, allowing efficient turnaround on collision repairs. Zero VOC content eliminates emissions concerns while maintaining strong adhesion to plastic and primed surfaces.
Due to its classification as acute toxicity, carcinogen, and skin corrosive, appropriate personal protective equipment-eye protection, gloves, protective clothing, and a respirator-is required. Use in a well-ventilated area and follow the listed first-aid procedures for inhalation, skin, eye, or ingestion exposure.
Why Pros Choose SEM Low VOC
- No adhesion promoters needed
- Superior adhesion
- Excellent sanding and feather edge
- Does not shrink or pinhole
How to Use
For olefin based plastics and semi rigid and rigid plastics
- Clean and dry the plastic or primed substrate; remove all contaminants before repair.
- Apply the first coat of SEM MINI-MAX™ 68422 within the 5-minute work window at 70°F (21°C).
- Allow the coat to become sandable for up to 15 minutes at 70°F (21°C). Lightly sand if a smooth surface is required.
- If additional thickness is needed, apply subsequent coats, each within the 5-minute work time and observe the same sandable window.
- After the final coat, let the repair cure for 1 hour at 70°F (21°C) before handling or finishing.
Compatibility
Compatible substrates: Plastic.
Compatible paint systems: Epoxy.
Specifications
| Part No. | 68422 |
|---|---|
| Product Line | SEM |
| MFR Model | 68422 |
| Standard/Approvals | California PROP65 Warning: Cancer and Reproductive Harm | GHS07 | OSHA HCS Hazard |
| Application | For olefin based plastics and semi rigid and rigid plastics |
| Manufacturer | SEM |
| Trade Mark | MINI-MAX™ |
| UPC | 646786684227 |
| Brand | SEM® |
| Composition | 13 to 30% Ceramic Microspheres, 10 to 13% bisphenolA(chloro)oxirane polymer, 5 to 7% Bisphenol F Epoxy Resin, >=1.5 to <5% 2,4,6-tris(dimethylaminomethyl)phenol, 1 to 1.5% Modified diglycidal ether, >=0.1 to <=1% dibutyl phthalate, >=0.1 to <1% 1,3-bis(2,3-epoxypropoxy)-2,2-dimethylpropane |
| Application Time | 5 min |
| Odor/Scent | Characteristic |
| Color | Gray |
| Flash Point | 218 deg C |
| Container Size (oz) | 1 |
| Container Type | Cartridge |
| Form | Liquid |
| Type | Low VOC |
| Curing Time | 1 hr |
- Cure Time
- 1 hr @ 70°F (21°C)
- Sandable Time
- 15 min @ 70°F (21°C)
- Work Time
- 5 min @ 70°F (21°C)
- VOC
- Zero VOC
- Storage
- Cool, dry place with adequate ventilation
- Compatible Substrates
- Plastic, primer
About SEM
SEM Products specializes in paint adhesion systems, flexible coatings, and plastic repair — the go-to choice for interior and trim refinishing.
Frequently Asked Questions
What substrates can SEM® MINI-MAX™ 68422 be applied to?
It is compatible with plastic and primer surfaces.
How long do I have to work with the material before it begins to set?
The work (application) time is 5 minutes at 70 °F (21 °C).
When can I sand and paint over the repaired area?
Sanding is possible after 15 minutes, and full cure for painting occurs in 1 hour at 70 °F (21 °C).
What personal protective equipment is required when using this product?
Wear eye protection, chemical-resistant gloves, protective clothing, and a respirator as recommended in the SDS.
Documents & Safety
Danger: This product is toxic if inhaled or swallowed, can cause serious skin and eye injury, may be carcinogenic and affect reproduction, and is harmful to aquatic life. Wear safety glasses or goggles, chemical-resistant gloves, protective clothing (coveralls), and a suitable respirator when handling. 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.
How to apply
Steps
1Clean both surfaces to bare, dry substrate.
2Load the cartridge and fit the mixing nozzle.
3Apply an even bead (or clamp) where needed.
4Tool or smooth the joint before it skins over.
5Allow to cure fully before stressing or painting.
Specifications
Full data
Frequently asked
Good to know
SEM is compatible with Plastic. Always ensure the surface is properly cleaned, degreased, and sanded before application to achieve the strongest adhesion and a professional finish.
The curing time for SEM is 1 hr. Drying and curing times may vary with temperature, humidity, and film thickness — always consult the Technical Data Sheet (TDS) for exact cycle conditions.
This listing ships SEM in a 1 container. Check the autofxmart catalog for other sizes and bulk pricing.
Most in-stock orders for SEM 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 SEM 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.
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