Page 114 - Polycoat 1.1 Table of Contents

TECHNICAL DATA SHEET | Section 6.1
PC-220 / 220SC
Elastomeric, Aromatic-Polyurethane Base Membrane

Product Description
PC-220/PC-220SC is a single component, liquid applied, Technical Data (Based on Draw Down Film)
moisture cured, aromatic polyurethane elastomeric
waterproofing base membrane. PC-220SC is designed for PC-220 PC-220SC
use in Southern California to be in compliance with SCAQMD
air quality standards. Make sure to use the correct grade of Coverage Rate 1 gal/100 sqft 1 gal/100 sqft
product which complies with VOC regulations/requirements 0.41 l/sqm 0.14 l/sqm
applicable as per federal, state, statutory, counties, cities and Dry Film Thickness 11 ± 2 mils 14 ± 1 mils
local bodies at the place of installation. per Coat 279 ± 50 102 ± 3
microns microns
Features
Hardness, ASTM D2240 55 ± 5 Shore A 55 ± 5 Shore A
• Economical
• Moisture Cured Tear Resistance, Die C, 170 ± 25 pli 120 ± 20 pli
• Seamless Waterproofing Membrane ASTM D624 28.9 ± 4.4 kN/m 21.0 ± 4.4 kN/m
Typical Uses Tensile Strength, 800 ± 100 psi 500 ± 100 psi
• Concrete ASTM D412 5.5 ± 0.7 MPa 3.44 ± 0.7 MPa
• Metal
• Plywood Ultimate Elongation, 500 ± 50% 400 ± 50%
• Wood ASTM D412
Packaging Specific Gravity 1.26 ± 0.1 cps 1.30 ± 0.1 cps

5-Gallon One 5 gallon pail (18.9 liters) Total Solids by Weight, 81 ± 2% 92.7 ± 2%
ASTM D2369
55-Gallon drum Net fill 50 gallons (189 liters)
Total Solids by Volume, 71 ± 2% 87.7%
ASTM D2697

Color Viscosity at 75°F (24°C) 6500 ± 2000 6500 ± 2000
cps
cps
Grey or Tan
Surface Preparation Volatile Organic 2.01 lb/gal 0.78 lb/gal
Refer to General Guidelines for complete information. Compounds, 240 gm/liter 94 gm/liter
Mixing
Before application, mix PC-220/PC-220SC using a mechanical
mixer at slow speed thoroughly until a homogeneous mixture
and color is attained. Use care not to allow the entrapment of
air into the mixture. Do not mix in an up and down motion. refusal and when the coating is dry, remove extra loose sand,
preferably by vacuum.
Application
For best results, use a squeegee or notched trowel. A phenolic Most applications require one or two coats. Please reference
resin core roller may be used but extra care should be taken gallons required in the desired system sheet. To obtain proper
not to trap air which may result in bubbles. adhesion between coats, it is imperative that re-coating be
done within 48 hours.
Requires a continuous coating application to minimize lines
and/or streaking. Curing
At 75°F (24°C) and 50% relative humidity, allow coating to cure
It is recommended to apply an aggregate of washed, dry, 16 hours before proceeding to subsequent coats. Cure time
rounded sand, approximately 16 or 20 mesh (0.84-1.19 mm), will vary depending on temperature and humidity. If more
6.5+ Mohs minimum hardness at a rate of 20 lbs/100 sqft (1kg/ than 48 hours passes between coats, reprime the surface with
sqm) or as required to achieve a slip-resistant finish, into the Polyprime U before proceeding.
®
wet second coat, covering it completely. Broadcast sand until
If accelerated curing is required, add one quart of PC-50 in

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