Page 196 - Polycoat 1.1 Table of Contents

TECHNICAL DATA SHEET | Section 10.5
POLY-CAULK PX27SL
®
100% Solids, Self-Leveling Polyurethane Joint Sealant

Product Description
Poly-Caulk PX27SL (Self-Leveling) is a two component, 1:1 Technical Data (Based on Draw Down Film)
®
(A:B) ratio by volume, 100% solids polyurethane sealant. Mix Ratio by Volume 1A : 1B
Features Specific Gravity,
Side-A 1.03 + 0.1
• 100% Solids Side-B 1.41 + 0.1
• Cured Material Remains Flexible, Even in Cold Viscosity at 75°F (24°C)
Temperatures Side-A 50 ± 20 poise
• Flexible Side-B 50 ± 20 poise
• Odorless Pot Life at 75°F (24°C), 50% R.H. 25 ± 5 minutes

Typical Uses Tack Free Time at 77°F (25°C), 12-24 hours
50% R.H.
Poly-Caulk PX27SL is used on interior and exterior horizontal
®
concrete surfaces, to repair random cracks, control joints, Cure Time at 75°F (24°C), 50% 36-48 hours
and other areas where down time is limited. R.H.
• Airports Hardness, ASTM D2240 30 ± 5 Shore A
• Bridge Headers 300 ± 50 psi
• Industrial and Manufacturing Facilities Tensile Strength, ASTM D412 2.1 ± 0.3 MPa
• Parking Garage Decks
• Saw/Utility Cuts Elongation, ASTM D412 800 ± 50%
• Spalls Tear Strength, ASTM D624 50 ± 5 pli
• Truck Aprons 8.8 ± 0.8 kNm
Total Solids by Weight, 100%
Packaging ASTM D-2369

1.5-gallon kit One 1 quart (0.98 liter) can of Side-A Total Solids by Volume, 100%
and One 2 gallon pail, net fill 1.25 ASTM D-2697
gallons (4.73 liters) of Side-B Volatile Organic Component 0 lb/gal
0 gm/liter
Color
Concrete Grey
Coverage Width of Joint
Coverages and yields shown do not include allowances for
loss or waste and variations in job conditions. Each user must 1/4” 3/8” 1/2” 5/8” 3/4” 7/8” 1”
establish their own factors for loss from experience.
Surface Preparation 1/4” 308 205 154 123 102 88 77
Allow concrete to cure 28 days before installation.
All joints must be clean and dry prior to installing Poly-Caulk 3/8” 205 136 102 82 68 58 51
®
PX27SL. If joint is damp, dry with heat torch.
Remove all dust from the concrete pores prior to installing Depth of Joint 1/2” 154 102 77 61 51 44 38
®
Poly-Caulk PX27SL. 5/8” 123 82 61 49 41 35 30
Backer rod should be used in control joints, the recommended
depth is not greater than 25% of the total depth of the slab. 3/4” 102 68 51 41 34 29 25
Construction joints are to be filled to full depth using no backer
rod or silica sand. 7/8” 88 58 44 36 29 25 22
To repair T-joints, the joint should be cut a minimum of 25%
of the total depth of the slab. The side of the T-joint must be 1” 77 51 38 30 25 22 19
cut 12” (20.4 cm) from the joint and a minimum of 2”(5.08
cm) deep.
For random crack and spall repairs, each side of the crack
should be cut to create a minimum 2” (5.08 cm) deep vertical
edge.
Ensure that all joint edges are at 90° angles to grade with no

POLYCOAT PRODUCTS TEL 562.802.8834 | FAX 562.921.7363 Section 10.5
wpsales@polycoatusa.com | www.polycoatusa.com