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 =0.1 to =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
- Safety Data Sheet (SDS)
- sem_68422_specification_sheet.pdf
- SEM_38363_Catalog.pdf
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 [email protected].
