PC Petrifier vs TotalBoat ThickSet: Which Epoxy Is Best for Wood Restoration?
Last updated September 01, 2026 · Data from manufacturer TDS and market pricing
Summary
PC Petrifier and TotalBoat ThickSet serve different but complementary roles in wood restoration. PC Petrifier is an ultra-low viscosity (150 cps) penetrating epoxy specifically formulated to soak into decayed wood fibers, restoring structural integrity from within. It penetrates up to 2 inches into softwood and is the industry standard for historic building restoration and marine wood repair. TotalBoat ThickSet is a low-viscosity (350 cps) deep pour epoxy better suited for filling voids, stabilizing larger rot areas, and building up missing wood sections. For comprehensive wood restoration, many professionals use PC Petrifier for penetration first, followed by TotalBoat ThickSet for filling and structural reinforcement.
Comparison Table
| Property | Product A | Product B |
|---|---|---|
| Mix Ratio | 2:1 by volume | 2:1 by volume |
| Viscosity | 150 cps (ultra-low) | 350 cps (low) |
| Max Pour Depth | 2" penetration | 2" pour depth |
| Cure Time | 48 hours | 48 hours |
| Coverage | 40 sq ft/gal | 8 sq ft/gal |
| Ideal Temperature | 70°F | 70°F |
| Primary Use | Penetrating decayed wood | Filling & casting voids |
| Wood Strength Restoration | 80% original strength | N/A (filling only) |
Verdict
Choose PC Petrifier when you need to restore rotted, decayed wood by penetrating deep into the fibers. It is the best choice for historic building restoration, boat deck repair, and log home preservation where the original wood structure must be maintained. Choose TotalBoat ThickSet when you need to fill large voids, rebuild missing sections of wood, or cast structural supports around decayed areas. For the best results on severely rotted wood, use PC Petrifier first to stabilize and harden the remaining wood fibers, then use TotalBoat ThickSet to fill any remaining voids or build up missing sections.
Frequently Asked Questions
Can PC Petrifier be used on wet or damp wood?
PC Petrifier works best on dry wood with moisture content below 20%. The wood must be thoroughly dried before application to allow proper penetration. For marine applications, the wood should be allowed to dry for several days after exposure. The ultra-low viscosity requires dry wood fibers to draw the epoxy in through capillary action.
How deep does PC Petrifier actually penetrate?
PC Petrifier penetrates up to 2 inches into softwood (pine, fir, cedar) and up to 1 inch into hardwood (oak, maple) per ASTM D4442 testing. Penetration depth depends on wood species, decay level, and application method. Multiple coats may be needed for deeper penetration. The epoxy is absorbed in 30-60 minutes for decayed wood.
Can TotalBoat ThickSet be used as a penetrating epoxy?
No, TotalBoat ThickSet has a higher viscosity (350 cps) that is designed for casting and filling, not deep penetration into wood fibers. It will sit on the surface rather than soaking in. For penetrating applications, use PC Petrifier or another ultra-low viscosity penetrating epoxy specifically formulated for wood restoration.
Which is better for repairing boat deck rot?
For boat deck rot repair, use both products in sequence. First, apply PC Petrifier to penetrate and stabilize the rotted wood fibers. After curing, use TotalBoat ThickSet to fill any remaining voids, gaps, or missing sections. This two-step approach restores structural integrity while providing a solid, paintable surface. TotalBoat Wet Edge is also excellent for below-waterline applications.
→ View PC Petrifier Penetrating Epoxy · → View TotalBoat ThickSet Epoxy