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How to Properly Install PE-80 for Joint & Crack Repairs


When working with decorative or industrial concrete, joint and crack maintenance is critical for long-term durability. PE-80 is a 2-component polyurea elastomer joint and crack filler that cures fast, holds strong, and protects edges from spalling and damage.


⚙️ Product Overview

  • Mix Ratio: 1:1 by volume

  • Viscosity: Low, allowing for smooth self-leveling

  • Cure Time: Traffic-ready in 1 hour (at 72°F)

  • Temperature Range: 30°F–130°F

  • Application: Interior control joints, saw cuts, and cracks in concrete slabs

  • Advantages:

    • Semi-rigid to protect joint edges

    • Non-staining formula

    • 100% solids, zero VOCs

    • Moisture insensitive

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🧼 Step 1: Surface Preparation

A clean joint is essential for proper adhesion.

Checklist:

  • Saw cut or clean out the joint to a minimum depth of ½"

  • Remove dust and debris with a vacuum or compressed air

  • Ensure surface is dry — PE-80 tolerates some moisture, but best results come from clean, dry concrete


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🧪 Step 2: Mixing the Product

PE-80 uses a simple 1:1 ratio (A + B components).


  • Use a plural-component pump or mix manually with a static mixer

  • Mix only what you can apply within the working time of 5–7 minutes

  • Make sure the material is well-blended for consistent curing



🧭 Step 3: Application

  • Dispense PE-80 directly into the joint or crack

  • Allow the product to self-level naturally — no need for troweling

  • Slight overfilling is recommended to allow for shave-flush finishing


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⏳ Step 4: Shave & Finish

  • After 30–60 minutes (depending on temperature), the product can be shaved flush with the surface using a sharp razor scraper

  • Final surface should be smooth and even with the surrounding slab



🧠 Pro Tips for Best Results:

  • Warm the material if ambient temps are low to improve flow

  • Work in manageable sections — once the material kicks, it sets fast

  • For decorative floors, masking edges ensures a crisp finish

  • Proper joint filling reduces edge spalling, increasing floor life



📌 Final Outcome

A properly installed PE-80 joint filler provides:

  • Strong edge protection

  • A seamless finish ready for traffic in about an hour

  • Long-term durability with minimal maintenance


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✅ In short: PE-80 offers fast cure, strong edge protection, and a clean finish — making it a go-to for novice and experienced contractors alike.



Where to purchase HTS Polyurea Joint Fill PE-80? It is available here : https://www.grindline.net/product-page/hts-polyurea-joint-fill-pe-80-neutral-10-gallon-kit






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