SP-20 Flexible Urethane Membrane
SP-20
Product Overview
SP-20 is a flexible aromatic urethane that has extreme tensile strength with an A shore hardness of 75. It is easy to install, has little odor and has elongation of over 1000%. It far outperforms epoxy membranes in crack-bridging and as a waterproofing membranes under Polymer Nation floor systems.
Uses
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.
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.03732 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.
The data below represents the most pertinent information needed by a professional installer to understand and efficiently install this material. The data was gathered at temperatures of 72-75 F and 30-50% RH. A wide array of independent and company test data has been compiled on this product but is too large to place on this Technical Data Sheet. Please direct inquiries for detailed test reports on this product to lab@polymernation.com.
SP-20
| Description | Results | Notes |
| Kit Yield in Gallons | 5 | A 1 mix kA 1 mix kit consists of 4.30 gal A and .70 gal B |
| Number of Components | 2 | |
| Mix Ratio Liquids by Volume | Not Provided | Do not split kits. |
| Ideal Application Temperatures | 60F-90F | Verify that substrate temperature is above 5 degrees of dewpoint during application and cure of material to avoid a potential amine blush |
| Mixed Viscosity in cP@25C/77F | 2000 | Warmer temperatures will reduce viscosity and lower temperatures will increase viscosity |
| Gel Time | 23 min. | Warmer temperatures will decrease gel time and lower temperatures will increase gel time |
| Dry to Touch | 2.5 Hours | Warmer temperatures will reduce time and colder temperatures will increase time |
| Through Dry | 4 Hours | Warmer temperatures will reduce time and colder temperatures will increase time |
| Dry to Walk | 8 Hours | Warmer temperatures will reduce time and colder temperatures will increase time |
| Dry to Lightly Use | 12 Hours | Warmer temperatures will reduce time and colder temperatures will increase time |
| Full Cure | 7 Days | Warmer temperatures will reduce time and colder temperatures will increase time |
| Shore Hardness at 24 hours | A 40 | Warmer temperatures will increase hardness |
| Shore Hardness at 7 days | A 75 | Warmer temperatures will shorten time to reach full hardness |
| Gloss @ 60 Degree Angle | 75-80 | Applying material close to dew point will decrease gloss and may result in an amine blush |
| VOC’s of Mixed Material | <8 g/L | EPA Method 24 |
| Color Scale per ASTM D1500 | N/A | |
| Solids by Volume Mixed | 100% | |
| Storage | 60F-90F | Store material between 60-90 degrees F in a protected dry location. |
| Odor | Very Subtle | |
| Application Thickness in Mils | As an unfilled membrane 20-30 | |
| Disposal | Dispose of material, containers, solvents, etc.per Federal, State and local guideline, rules and laws | |
| Available Colors | Light Gray | |
| Mixing & Installation | Combine all of part A and B into a single container, large enough to accept the entire kit. Mix at 350 RPM for 2-3 minutes using an appropriate mixing blade and making sure not to introduce excessive air into the solution. Pour the entire content from the container onto the floor and follow normal squeegee and back roll or cut and roller techniques. Recoat within 24 hours. Clean tools with a solvent similar to Xylene or Acetone. When a thicker membrane is desired, mix PN 1620 S with a full kit. This mix will cover 160 square feet at 60 mils and spread evenly up to 200 mils. | |
| Polymer Nation believes the information contained herein to be true and accurate. Information contained herein is for evaluation purposes only. |
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