SP-20 Flexible Urethane Membrane
SP-20 is a flexible aromatic urethane coating that has extreme tensile strength with an A shore hardness of 75. It is easy to install, has low odor and has tensile elongation properties of over 1000%.
Overview
SP-20 is a flexible aromatic urethane coating that has extreme tensile strength with an A shore hardness of 75. It is easy to install, has low odor and has tensile elongation properties of over 1000%. It far outperforms epoxy membranes in crack-bridging and as a waterproofing membrane under Polymer Nation floor systems.
Uses and Benefits
SP-20 is primarily used as a membrane in parking decks and waterproofing applications. It can also be used as a flexible broadcast resin, as a binder in flexible floor applications and bulked up using fumed silica to make a flexible patching paste.
Limitations
SP-20 is designed to be applied between 20-30 mils. It is not intended as a finish coat as it will amber. Ideal application temperatures to be between 60-90 degrees Fahrenheit. Cooler temperatures will increase cure times. Warmer temperatures will decrease working and cure times. Verify that substrate temperature is above 5 degrees of dewpoint during application and cure of material to avoid a potential amine blush.
Preparation
The preparation method for each project is determined by a full understanding of the substrate to be coated, the chemistry of the coating system being used, the coating system thickness, and numerous other factors. The coating installer should fully read and understand ICRI Guideline NO. 310.2R-2013 and OSHA 29 CFR 1926.1153 before starting preparatory work. The aim, of preparing a substrate for coating applications, is to roughen the surface, remove weak layers, contaminants, dirt, debris and present a solid, clean, dry substrate for the primer. If unsure as to the level of preparation needed contact Polymer Nation at Lab@polymerNation.com.
Key Benefits
- Low Odor/VOCs
Technical Data
At a glance — the specs most teams decide on.
- Shore Hardness @ 24 Hours
- 40Shore A
- Shore Hardness @ 7 Days
- 75Shore A
- Gloss @ 60° Angle
- 75-80Applying material close to dew point will decrease gloss and may result in an amine blush
- VOCs of Mixed Material
- <50 g/lEPA Method 24
- Solids by Volume (Mixed)
- 100%
- Working Time
- 15-20 minutes
- Gel Time
- "" (empty string - the codebase's delete sentinel; do NOT write the words N/A)Warmer temperatures will decrease gel time and lower temperatures will increase gel time
- Dry to Touch
- 2-4 hoursWarmer temperatures will reduce time and colder temperatures will increase time
- Through Dry
- 4-6 hoursWarmer temperatures will reduce time and colder temperatures will increase time
- Dry to Walk
- "" (empty string - the codebase's delete sentinel; do NOT write the words N/A)Warmer temperatures will reduce time and colder temperatures will increase time
- Dry to Lightly Use
- 12-16 hoursWarmer temperatures will reduce time and colder temperatures will increase time
- Full Cure
- 7 daysWarmer temperatures will reduce time and colder temperatures will increase time
- Number of Components
- 2Part A - 4.3 gal, Part B - 0.7 gal
- Mix Ratio (Liquids by Volume)
- 4.30 gal A, 0.70 gal BDo not split kits.
- Mixed Viscosity @ 25°C/77°F
- 2000 cPWarmer temperatures will reduce viscosity and lower temperatures will increase viscosity
- Ideal Application Temperature
- 60-90°FVerify that substrate temperature is above 5 degrees of dewpoint during application and cure of material to avoid a potential amine blush
- Application Thickness
- 20-30 mils
- Coverage Per Mix
- 50-80 sq.ft./gal.
- Odor
- "" (empty string - the codebase's delete sentinel; do NOT write the words N/A)
- Storage Temperature
- 60-80°FStore material between 60-90 degrees F in a protected dry location.
Colors & Packaging
Colors
Tap a color to enlarge. Swatches are a representative guide — request a physical sample for color-critical work.
Packaging
- Available sizes
- 5 Gallons
- Note
- A 1 mix kA 1 mix kit consists of 4.30 gal A and .70 gal B
Where It's Used
Markets
Used in Systems
Mixing & Application
Do not split kits. Combine all of part A and B into a single container, large enough to accept the entire kit. Mix at 350 RPM for 1.5-2.5 minutes using an appropriate mixing blade and making sure not to introduce excessive air into the solution.
Disposal: Dispose of material, containers, solvents, etc., per Federal, State and local guidelines, rules and laws.
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