Page 118 - Polycoat 1.1 Table of Contents

TECHNICAL DATA SHEET | Section 6.3
PC-220SF
Solvent Free, Elastomeric,
Aromatic Polyurethane Base Membrane

Product Description
PC-220SF is a single component, high solids, low odor, solvent Technical Data (Based on Draw Down Film)
free, environmentally safe, liquid applied, moisture-cured,
aromatic polyurethane elastomeric waterproofing base
membrane. Coverage Rate 1 gal/100 sqft
0.41 l/sqm
Features
Dry Film Thickness per 16 ± 2 mils
• Solvent Free Coat 406 ± 50 microns
• Moisture Cured
• Seamless Waterproofing Membrane
Hardness, ASTM D2240 50 ± 5 Shore A

Typical Uses Tear Resistance, Die C, 220 ± 25 pli
ASTM D624 38.5 ± 4.4 kN/m
• Concrete
• Masonry Surfaces Tensile Strength, 400 ± 100 psi
• Metal ASTM D412 2.7 ± 0.7 MPa
• Plywood
• Wood
Ultimate Elongation, 525 ± 75%
ASTM D412
Packaging
Specific Gravity 1.34 ± 0.1
5-Gallon 5 gallon (18.9 liters) pail
Total Solids by Weight, 99.99%
55-Gallon 55 gallon drum, net fill 50 ASTM D2369
gallons (189 liters)

Total Solids by Volume, 99.99%
ASTM D2697
Color
Grey, Tan, or custom color. Viscosity at 75°F (24°C) 6500 ± 2000 cps
Not a stock item. Minimum order of 250 gallons (945 liters)
is required. See color chart for special provisions. Contact Volatile Organic
Polycoat Products for more information. Compounds, <0.08 lb/gal
Surface Preparation ASTM D-2369-81 <10 gm/liters
Refer to General Guidelines for complete information.
Mixing
Before application, mix PC-220SF using a mechanical mixer adhesion between coats, it is imperative that re-coating be
at slow speed thoroughly until a homogeneous mixture and done within 48 hours.
color is attained. Use care not to allow the entrapment of air
into the mixture. Do not mix in an up and down motion. Curing
At 75°F (24°C) and 50% relative humidity, allow coating to cure
Application 16 hours before proceeding to subsequent coats. Cure time
For best results, use a squeegee or notched trowel. A phenolic will vary depending on temperature and humidity. If more
resin core roller may be used but extra care should be taken than 48 hours passes between coats, re-prime the surface
not to trap air which may result in bubbles. with Polyprime U before proceeding.
Requires a continuous coating application to minimize lines If accelerated curing is required, add one quart of PC-50 in a 5
and/or streaking. gallon pail of PC-220SF and mix thoroughly. This accelerated
It is recommended to apply an aggregate of washed, dry, PC-220SF will cure in 6-8 hours at 75°F (24°C) and 50% relative
rounded sand, approximately 16 or 20 mesh (0.84-1.19 mm), humidity. If PC-50 Accelerator is used then re-coat should be
6.5+ Moh’s minimum hardness at a rate of 20 lbs/100 sqft (1 done within 12 hours after cure. If re-coat window has passed,
kg/sqm) or as required to achieve a slip-resistant finish, into then solvent wipe the surface with VOC compliant solvent and
®
the wet second coat, covering it completely. Broadcast sand re-prime surface with Polyprime U.
until refusal and when the coating is dry, remove extra loose PC-220 SF is very sensitive to heat and moisture. Higher
sand, preferably by vacuum. temperatures and/or high humidity will accelerate the cure
Most applications require two coats. To achieve proper time. Use caution in batch sizes and thickness of application.

POLYCOAT PRODUCTS TEL 562.802.8834 | FAX 562.921.7363 Section 6.3
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