Purpose
Quick-reference guide for protecting the polyaspartic floor coating during and after garage move-in. This consolidates the decision framework from three detailed design documents into a single actionable checklist.
Detailed documentation:
- Jack Stand Selection — Stationary point loads (sandwich pads)
- Floor Jack Selection — Rolling loads (PU caster upgrades)
- Shop Equipment Floor Protection — Everything else (UHMW-PE barriers, compressor isolation)
The Two Rules
Every piece of equipment falls into one of two categories. The protection is different for each — using the wrong one makes things worse.
| If the equipment… | The risk is… | The fix is… |
|---|---|---|
| Rolls under load (floor jack, engine hoist, welding cart) | Scratching and gouging from hard casters dragging across the coating | Polyurethane caster upgrade — softer material, larger contact patch |
| Sits in one spot for months/years (roll cab, compressor, workbench, shop press) | Plasticizer migration and adhesion bonding — the caster chemically fuses to the coating and tears it off when moved | UHMW-PE barrier pad — chemically inert, nothing bonds to it |
PU Casters Are the WRONG Answer for Stationary Equipment
Polyurethane and polyaspartic are in the same polymer family. A PU caster sitting on a polyaspartic floor for years will migrate plasticizers and eventually bond to the coating. When you move it, a disc of coating rips off. Use UHMW-PE (cutting board material) for anything that parks long-term.
Decision Flowchart
Is it heavy (>150 lbs loaded)?
├── NO → No protection needed (creepers, stools, small carts, fans)
└── YES → Does it move regularly (weekly or more)?
├── YES → Upgrade to polyurethane casters (85-95A Shore A)
└── NO → Does it vibrate when running?
├── YES → Neoprene isolation pad + grommet bolts (compressor)
└── NO → UHMW-PE barrier pads under every contact point
Equipment Quick Reference
Tier 1: Heavy + Stationary — Protect Immediately at Placement
These get UHMW-PE barrier pads the moment they’re set in their home position. Don’t plan to “do it later” — adhesion bonding starts from day one.
| Equipment | Protection | Pad Spec | When to Place |
|---|---|---|---|
| 56” Roll cab (~1,500 lbs loaded) | 4x UHMW-PE caster cups | 8”x8”x3/8”, beveled edges | First time you park it |
| Air compressor (60-80 gal) | Neoprene pad + UHMW-PE base plate + grommet bolts + flex whip line | Full footprint + 2” margin | During installation — bolt to slab |
| Shop press | 4x UHMW-PE foot pads | 5”x5”x1/4” | At placement |
| Parts washer | 4x UHMW-PE foot pads | 5”x5”x1/4” | At placement |
| Heavy workbench | UHMW-PE strips under feet/levelers | 1/4” thick, sized to feet | At placement |
| Steel shelving units (per unit) | 4x UHMW-PE foot pads | 3”x3”x1/4” | At placement |
Tier 2: Heavy + Rolling — Upgrade Casters Before First Use on Coating
These get polyurethane caster upgrades. Do the swap before the equipment ever rolls on the coated floor.
| Equipment | Protection | Caster Spec |
|---|---|---|
| Floor jack (Daytona Super Duty) | PU caster swap (all 4) | 85-95A PU, match factory bolt pattern |
| Engine hoist / cherry picker | PU caster swap | 85-95A PU, match factory size |
| Transmission jack | PU caster swap | 85-95A PU |
| Welding cart | PU caster swap | 85-95A PU |
Tier 3: Light + Mobile — No Protection Needed
| Equipment | Why It’s Fine |
|---|---|
| Creeper | Low PSI, constant movement |
| Shop stool | Moves constantly when in use |
| Small tool carts (<150 lbs) | Light enough that factory casters are fine |
| Floor fan | Seasonal, lightweight |
Jack Stands — Sandwich Pads (Special Case)
Jack stands are stationary but short-term (hours to days, occasionally weeks). They use engineered sandwich pads, not UHMW-PE.
| Layer | Material | Thickness |
|---|---|---|
| Top | Polyurethane sheet (80-90A) | 1/4” |
| Middle | Hot rolled steel plate | 3/16” |
| Bottom | Neoprene rubber (60-70A) | 1/4” |
| Total | ~7/8” |
Size: 14”x14” per pad (4 pads for a full set). Place pad first, then stand, then lower vehicle. Never slide pads under loaded stands.
Move-In Timing Checklist
Use this sequence when bringing equipment into the garage after the floor coating cures.
Before Any Equipment Enters
- Confirm coating cure time with contractor — typically 24-48 hours for foot traffic, 5-7 days for heavy loads and vehicle traffic — stage:: 7
- Sweep/clean the floor — any grit under pads or casters becomes an abrasive — stage:: 7
- Have all UHMW-PE pads cut, beveled, and ready — stage:: 7
- Have all PU caster sets purchased and ready to swap — stage:: 7
Caster Swaps (Do These in the Driveway, Not on the New Floor)
- Floor jack — swap all 4 casters to PU before it touches the coating — stage:: 7
- Engine hoist — swap casters before first roll-in — stage:: 7
- Transmission jack — swap casters — stage:: 7
- Welding cart — swap casters — stage:: 7
- Test roll each piece on the coating unloaded — confirm no marking — stage:: 7
Stationary Equipment Placement
- Roll cab — roll to home position, tip-and-slide UHMW-PE cups under all 4 casters immediately — stage:: 7
- Shop press — place UHMW-PE foot pads, then set press on them — stage:: 7
- Parts washer — place UHMW-PE foot pads, then position — stage:: 7
- Workbench — place UHMW-PE strips/pads, then position — stage:: 7
- Steel shelving — place 3”x3” UHMW-PE pads at each foot location, then set unit on them — stage:: 7
- Air compressor — install full isolation stack (UHMW-PE base plate → neoprene pad → compressor → grommet bolts into slab → flex whip line to rigid piping) — stage:: 7
Vehicles
- Clean tires before first entry (construction debris embeds in tire tread and scratches coating) — stage:: 7
- Check for fluid leaks — oil/coolant on fresh coating can stain — stage:: 7
- Use drip pans under any vehicle known to leak — stage:: 7
Roll Cab Pad Placement Method
The roll cab is too heavy to steer precisely onto four small targets. Use the tip-and-slide method:
- Roll cab to its home position
- Grip the top edge on one side and pull toward you — tips the cab ~1”, lifting the far two casters
- Slide a UHMW-PE pad under each lifted caster with your foot
- Lower gently
- Walk to the other side and repeat
Removing pads: Same technique in reverse — tip, slide pads out, lower, roll.
Too heavy to tip? Slide a flat pry bar under the caster mounting plate and lever up ~1/2”. Place pad with your other hand. One caster at a time.
Annual Maintenance
Once per year, briefly move equipment off barrier pads and check:
- Coating under pads — should look identical to surrounding floor. Discoloration or softening means the barrier material failed
- UHMW-PE pad condition — replace if cracked or permanently deformed
- Caster condition — check for flat spots from static loading
- Compressor neoprene pad — check for compression set or hardening
- Compressor grommet bolts — verify rubber grommets haven’t cracked (metal-to-metal contact defeats vibration isolation)
- Compressor flex whip line — check for cracking or stiffness
5-Year: Relocate Heavy Equipment
Every ~5 years, shift heavy stationary equipment a few inches. This:
- Allows full coating inspection under long-term contact areas
- Resets any incipient creep in the coating
- Confirms caster bearings still roll (they seize from years of disuse)
Materials Shopping List
UHMW-PE (All Tier 1 Stationary Equipment)
| Item | Quantity | Size | Est. Cost |
|---|---|---|---|
| 3/8” UHMW-PE sheet (roll cab cups) | 4 pieces | 8”x8” | ~$15-25 |
| 1/4” UHMW-PE sheet (press, washer, bench) | ~8-12 pieces | 5”x5” to 7”x7” (size to equipment feet) | ~$10-25 |
| 1/4” UHMW-PE sheet (shelving feet) | ~24-32 pieces (6-8 units x 4 feet) | 3”x3” | ~$5-10 |
| UHMW-PE subtotal | ~$30-60 |
Sources: McMaster-Carr, Amazon, TAP Plastics, local plastics supplier
Compressor Isolation
| Item | Spec | Est. Cost |
|---|---|---|
| Neoprene anti-vibration pad | 3/8”-1/2” thick, 60-70A, full footprint + 2” margin | ~$15-30 |
| UHMW-PE base plate (optional) | 1/4” thick, same footprint as neoprene | ~$10-15 |
| Vibration isolation grommet bolt kit | 4x sets (wedge anchors + rubber grommets + rubber washers + metal sleeves) | ~$10-25 |
| Flexible whip line | 18-24” braided rubber, ≥150 PSI, NPT fittings | ~$15-30 |
| Compressor subtotal | ~$40-85 |
PU Caster Upgrades (All Tier 2 Rolling Equipment)
| Equipment | Caster Spec | Est. Cost |
|---|---|---|
| Floor jack (set of 4) | 85-95A PU, match factory bolt pattern | ~$32-80 |
| Engine hoist (set of 4) | 85-95A PU | ~$30-60 |
| Transmission jack | 85-95A PU | ~$25-45 |
| Welding cart | 85-95A PU | ~$20-40 |
| Caster subtotal | ~$75-145 |
Jack Stand Sandwich Pads
| Item | Spec | Est. Cost |
|---|---|---|
| Polyurethane sheet | 1/4” thick, 80-90A durometer | ~$30-50 |
| 3/16” hot rolled steel plates | 14”x14” (4 pieces) | ~$30-50 |
| Neoprene sheet | 1/4” thick, 60-70A durometer | ~$15-25 |
| Contact cement | Barge or 3M weatherstrip adhesive | ~$10-15 |
| Sandwich pad subtotal | ~$85-140 |
Total Floor Protection System
| Category | Est. Cost |
|---|---|
| UHMW-PE barrier pads (incl. shelving) | $30-60 |
| Compressor isolation | $40-85 |
| PU caster upgrades | $75-145 |
| Jack stand sandwich pads | $85-140 |
| Total | ~$230-430 |
For a professionally applied polyaspartic coating on a 960 sq ft floor ($2,900-4,800), this is straightforward insurance.
Created: March 2026 Source documents: Jack Stand Selection, Floor Jack Selection, Shop Equipment Floor Protection