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How to Mix Your Slip Solution (Automotive)
How to Mix Your Automotive Slip Solution
Properly mixed slip solution is an important part of a successful automotive window film installation. The correct mixture helps improve film positioning, squeegee glide, contamination control, and adhesive performance.
Recommended Mixing Ratios
| Product | 32 oz Spray Bottle | Per Gallon |
|---|---|---|
| SlipX | 1 capful | 0.4 oz per gallon of water |
| Tint-Tac | 2 capfuls | 1 oz per gallon of water |
Use Clean Water
For best results, use distilled or reverse-osmosis water whenever possible. Clean water helps reduce contamination and promotes more consistent installation results.
SlipX vs Tint-Tac
SlipX is more concentrated and requires less product per gallon. Tint-Tac uses a higher mixing ratio and may be preferred by installers who want a different installation feel.
Both products can provide excellent installation performance when mixed according to the recommended ratios.

Can You Adjust the Mixture?
Many installers fine-tune their solution based on climate, film type, and personal preference. If you are unfamiliar with a particular film or installation environment, start with the recommended ratio before making adjustments.
Hot or humid shop? Add a splash more solution. Cooler temperatures? Use slightly less so the tack stays snappy.
Troubleshooting Your Mix
| Problem | Likely Cause | Quick Fix |
|---|---|---|
| Film curls at edges or on the dot matrix | Over-soaping (common when eyeballing the mix) | Dump out about 1/4 of the mix, refill with distilled water, and retest |
| Film won't budge on the glass | Too little soap, or a cold shop | Add a teaspoon of SlipX or Tint-Tac |
| Dry-spot streaks | Tap water was used | Switch to distilled or reverse-osmosis water |
Key Takeaways
- SlipX mixes at 1 capful per 32 oz bottle or 0.4 oz per gallon.
- Tint-Tac mixes at 2 capfuls per 32 oz bottle or 1 oz per gallon.
- Use distilled or reverse-osmosis water whenever possible.
- Follow recommended ratios before making adjustments.
- Proper mixing helps improve positioning, glide, and adhesive performance.








