How do I choose the right bond hardness for diamond tooling?

Use soft bonds on hard, dense concrete (high PSI) and hard bonds on soft or porous concrete. For most commercial floors, a medium bond is the safest starting point. Call us at (802) 489-0828 and we'll spec the right bond for your specific floor condition and machine.

Are these diamond tools compatible with my grinder?

US Abrasives stocks tooling compatible with all major grinder brands including Klindex, Lavina, Husqvarna, Superabrasive, STI Prep/Master, HTC, Blastrac, Diamatic, and Onyx. Tell us your machine model and we'll confirm fit before you order.

How fast does my order ship?

In-stock orders placed before 2 PM CST ship same day Monday through Friday via FedEx or UPS Ground. Most U.S. deliveries arrive within 2–5 business days. Expedited shipping is available — call (802) 489-0828 for a quote.

What diamond grit should I start with on a concrete floor?

For most concrete grinding and prep work, start with 16–30 grit metal bond diamonds to open the floor and remove coatings or adhesive. Then progress through 40–60 grit, transition to resin bonds at 100–200 grit for honing, and finish with 400–3000 grit resin pads for polishing. Your starting grit depends on floor hardness and what you're removing.

What tools remove epoxy coatings or glue from concrete?

PCD (polycrystalline diamond) scrapers and hard-bond diamond cup wheels are most effective for removing thick epoxy coatings and adhesive residue from concrete. For thinner coatings, soft-bond metal diamonds work well. We can spec the right tool for your coating type and thickness.

1 2

Polymer Nation

Polymer Nation – SP‑41 Clear Flexible Polyaspartic (2 Gallon Kit)

Q: Do you offer volume or quantity discounts?

Yes. Volume pricing is available on orders of 10 or more pieces of the same item. Call (802) 489-0828 or email info@fast-prep.com to discuss pricing for your crew or job.

$257.47 USD

Sale Sold out

Shipping calculated at checkout.

Product variants

Quantity

✓ Ships M–F via FedEx & UPS · ✓ Same-day shipping on orders before 2 PM · ✓ Expert support: (802) 489-0828

Product Overview

SP‑41 is a clear, flexible polyaspartic topcoat designed to provide outstanding UV resistance, flexibility, and abrasion resistance. It combines a robust polyaspartic resin with Polymer Nation’s proprietary Iso blend, offering excellent working time and long-term performance across a wide variety of systems.

Typical Uses

Clear topcoat over EPDM systems or decorative flake floors
Flexible wall systems and protective padding areas
Floors exposed to UV light, movement, or wear-and-tear
Adheres to concrete, gypsum, cement board, metals, and fiberglass

Kit Sizes

2 Gallon Kit
10 Gallon Kit
100 Gallon Kit
Special packaging available upon request

Key Features

Flexible, clear polyaspartic resin system
92.5% solids by volume
VOC content: <50 g/L (EPA Method 24)
1:1 mix ratio by volume
Low odor
Excellent working time and application flow
Shore Hardness: 12 (24h) → 50 (7 days)
Gloss: 90+ @ 60° angle

Mixing & Installation

Combine all of Part A and Part B into a single container large enough to accommodate the entire mix. Blend at 350 RPM for 2–3 minutes using a proper mixing blade. Avoid introducing air. Apply using standard squeegee and back-roll or cut and roll techniques. Recoat within 24 hours. Clean tools with acetone or xylene.

Cure Schedule @ 70 °F (21 °C)

Dry to Touch	4 hours
Through Dry	11 hours
Dry to Walk	16 hours
Light Use	18 hours
Full Cure	7 days

Application Conditions

Ideal temperature: 70–80 °F (40–60% RH)
Ensure substrate temperature is at least 5 °F above dew point

Product Documentation

SP‑41 Technical Data Sheet (PDF)

Need Help?

Looking for a quote or help specifying SP‑41 in your next project? Contact our team for personalized support.

Technical Specs

Grinder Compatibility

Shipping & Freight

Standard orders: Most in-stock items ship M–F via FedEx or UPS Ground. Orders placed before 2:00 PM CST typically ship same day.

Freight shipments: Heavy equipment and large orders ship LTL. Our team will contact you to coordinate delivery.

Expedited shipping: Next-day and 2-day air available on request. Call (802) 489-0828 for a quote.

Returns: Unused items may be returned within 30 days in original packaging. Custom or special-order tooling is non-returnable. Contact info@fast-prep.com to initiate.

Frequently Asked Questions

How do I choose the right bond hardness?
Use soft bonds on hard concrete (high PSI/dense) and hard bonds on soft concrete. For most commercial floors, Medium is the safest starting point. Call us at (802) 489-0828 and we'll spec the right bond for your floor condition.

Are your plates compatible with my machine?
We stock tooling for Klindex, Lavina, Husqvarna, Superabrasive, and most other planetary grinders. Tell us your machine model and we'll confirm fit before you order.

Do you offer quantity discounts?
Yes. Volume pricing is available on orders of 10+ pieces of the same item. Call (802) 489-0828 or email info@fast-prep.com to discuss.

How quickly will my order arrive?
In-stock orders placed before 2 PM CST ship same day M–F. Most U.S. deliveries arrive within 2–5 business days via FedEx or UPS Ground.