Page 194 - Polycoat 1.1 Table of Contents

TECHNICAL DATA SHEET | Section 10.4
POLY-CAULK PX27GG
®
High Solids, Non-Sag,
Gun Grade Polyurethane Joint Sealant

Product Description
Poly-Caulk PX27GG (Gun Grade) is a two component, 1:3 Technical Data (Based on Draw Down Film)
®
(A:B) ratio by volume, non-sag, high solids polyurethane Mix Ratio by Volume 1A : 3B
sealant.
Specific Gravity,
Features Side-A 1.06 + 0.1
Side-B 1.26 + 0.1
• High Solids
• Cured Material Remains Flexible, Even in Cold Viscosity at 75°F (24°C) 50 ± 20 poise
Side-A
Temperatures Side-B thixotrope
• Flexible Pot Life at 75°F (24°C), 50% R.H. 25 ± 5 minutes
• Odorless
Tack Free Time at 77°F (25°C), 12-24 hours
Typical Uses 50% R.H.
®
Poly-Caulk PX27GG is used on interior and exterior Cure Time at 75°F (24°C), 50% 36-48 hours
horizontal concrete surfaces, to repair random cracks, R.H.
control joints, and other areas where down time is limited. Hardness, ASTM D2240 40 ± 5 Shore A
• Airports
• Bridge Headers Tensile Strength, ASTM D412 300 ± 50 psi
• Industrial and Manufacturing Facilities 2.1 ± 0.3 MPa
• Parking Garage Decks Elongation, ASTM D412 500 ± 50%
• Saw/Utility Cuts Tear Strength, ASTM D624 50 ± 5 pli
• Spalls 8.8 ± 0.8 kNm
• Truck Aprons Total Solids by Weight, 95 ± 2%
ASTM D2369
Packaging
Total Solids by Volume, 94 ± 2%
1.5-gallon kit One 1/2 gallon can, net fill 0.375 gallons ASTM D2697
(1.42 liters) of Side-A and Volatile Organic Component 0.42 lb/gallon
One 2 gallon pail, net fill 1.125 gallons 50 gm/liter
(4.25 liters) of Side-B

Width of Joint
Color
Concrete Grey 1/4” 3/8” 1/2” 5/8” 3/4” 7/8” 1”
Coverage
Coverages and yields shown do not include allowances for 1/4” 308 205 154 123 102 88 77
loss or waste and variations in job conditions. Each user must
establish their own factors for loss from experience. 3/8” 205 136 102 82 68 58 51
Surface Preparation 1/2” 154 102 77 61 51 44 38
Allow concrete to cure 28 days before installation. Depth of Joint
All joints must be clean and dry prior to installing Poly-Caulk 5/8” 123 82 61 49 41 35 30
®
PX-27GG. If joint is damp, dry with heat torch.
Remove all dust from the concrete pores prior to installing 3/4” 102 68 51 41 34 29 25
Poly-Caulk PX27GG.
®
7/8” 88 58 44 36 29 25 22
Backer rod should be used in control joints, the recommended
depth is not greater than 25% of the total depth of the slab.
1” 77 51 38 30 25 22 19
Construction joints are to be filled to full depth using no backer
rod or silica sand.
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 edge.
cut 12” (20.4 cm) from the joint and a minimum of 2”(5.08
cm) deep. Ensure that all joint edges are at 90° angles to grade with no
V-grooving or feather edges.
For random crack and spall repairs, each side of the crack ®
should be cut to create a minimum 2” (5.08 cm) deep vertical All surfaces must be primed with Polyprime 2180 or

POLYCOAT PRODUCTS TEL 562.802.8834 | FAX 562.921.7363 Section 10.4
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