BR-3SF SPRAYABLE URETHANE
| Product Description |
| A solvent based urethane coating used in heavy abrasion situations designed primarily for application by airless spray. It can also be brushed, rolled or dipped. Material: Aliphatic polyether urethane in dichloromethane. |
| Mix Ratio |
BR-3SF Part A |
BR-3SF Part B |
| By Weight | 100 | 15 |
| Package Sizes |
Packaged/Sold by Weight | |
| Kit | BR-3SF Part A |
BR-3SF Part B |
| 1.0kg | 870g | 130g |
| 5.0kg | 4.35kg | 0.65kg |
| 23kg | 20kg | 3kg |
| Solids Content |
Mixed |
| By Weight | 66.5% |
| Hardness |
Bashore Resilience |
Tensile Strength |
| 80±5 Shore A |
40% (ASTM D2632-74) | 3375 psi (ASTM D412-68) |
| Impact Resistance |
Flexibility |
Tear Strength |
| Greater than 160 inch - pounds (ASTM D2794) |
Pass 1/8" conical mandrel (ASTM D522) | 242 lbs./in Die C (ASTM D-624) 67 lbs./in D 470 |
| Elongation |
Abrasion Resistance |
Operating Temperature |
| 420% (ASTM D412-68) |
0.0036 grams weight loss per 1000 cycles, H18 wheel, at 1000 gms. (ASTM D1-044-73) | -56oC (-70oF) to 93oC (200oF) |
| Fungus Resistance |
Modulus 100% |
Weight of Cured Coating |
| Non-nutrient |
1450 psi (ASTM D412-68) |
44 gm/m2 @ 25 microns 0.90 lbs per 100 ft2 at .001" thick |
| Tack Free | Print Free | Ultimate Cure |
| 1 hour @ 21oC (70oF) | 3 hours @ 21oC (70oF) | 5 days at 30 dry mils at 21oC (70oF) |
| Flammability |
| Normac BR-3SF Part "A" and Part "B" are both non-flammable in shipping, storage and application. |
| Recoat Times | Application Life |
| Minimum: 10 - 15 minutes Maximum: 72 hours. |
1 hour plus, @ 21oC (70oF) |
| Volatile Organic Compound (V.O.C.) |
| Methylene Chloride is not considered a V.O.C. Therefore the actual V.O.C. content will be less than 1%. It is advised to consider local, state, provincial or federal laws pertaining to the application solvent based coatings prior to use. |
| Safety, Handling and Toxicity |
|
See Normac BR-3SF MSDS documentation for specific handling and safe working practices.
|
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| Application |
| Normac BR-3SF can be sprayed, brushed, rolled or dipped. Spraying is the preferred method of application using standard air or airless spray equipment. Spray nozzle sizes depend upon the article being sprayed, usual range or nozzle openings would be from 0.015 inches to 0.035". Surface Preparation: Standard surface preparation procedures such as grit blasting to near white/white metal or acid etching concrete is required for good mechanical bonding of the Normac BR-3SF sprayable urethane system. For more details see "Normac Surface Preparation Guide for Urethane Coatings." Primers: NR-9500: A two component, single coat air curing solvent based primer. NR-9600: A two component wash primer base for NR-9500. 900R/ECR: A two component, air curing rubber based primer. EP-100: A two component 100% solids primer for concrete. |
| Coverage |
| 22.7m2 @ 25 microns/kg DFT (111ft2 /lb @ .001" DFT). 0.57m2 @ 1mm DFT thickness per kg. (6.11ft2/.040"/lb. DFT). |
Rev.6
