Adhesives, Sealants & Lubricants
CRC Knock'er Loose Penetrating Solvent- 13 wt. oz. [Pack of 12]
A go-to penetrating solvent for seized bolts and corroded fittings, CRC Knock’er Loose (13 fl oz aerosol, sold in packs) is praised for fast penetration and strong spray. Good gift for hands-on mechanics—mind ventilation and aerosol handling.
97.5
GiftScore
How the GiftScore is calculated
| Signal | Reading | Pts |
|---|---|---|
| Base rating | 4.7★ | +94.0 / 100 |
| Review volume confidence | Very large owner crowd | +2.0 (min -2) |
| Critical owner-feedback signal | No clear signal | +0.0 (min -2) |
| GiftScore Build & Materials | 78/100 | +1.1 (min -3) |
| GiftScore Safety Signals | 76/100 | +1.0 (min -4) |
| GiftScore Long-term Durability | 74/100 | +1.0 (min -3) |
| Final GiftScore | 97.5 | |
Base rating is an estimated baseline from the owner feedback we have available across Amazon reviews and any credible web sources we reviewed. GiftScore editorial signals (build, safety, longevity) are scored independently of that baseline — they reflect what owner feedback and product specs actually say about the product. Some signals are skipped when they don't fit the product type.