Knowde Enhanced TDS
Identification & Functionality
- Product Type
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Product Highlights
SR-200EC provides both scratch resistance and easy-to-clean properties to a variety of surfaces. It can be applied on plastics (such as polycarbonate, PMMA, PET, polyurethane, & epoxy) as well as metals (such as stainless steel, aluminum, titanium, brass and chrome). While it is recommended to be applied to a thickness of a few microns, it can also be applied thinner – much less than one micron.
Applications & Uses
- Application Method
- Cure Method
- Coating Application
It is recommended that coating application be performed in a clean environment to minimize surface defects. To make the coating solution, use a dust-free container and combine Part A and Part B at a 3:1 ratio by weight. Mix well by stirring briefly (avoid vigorous stirring to minimize foam formation). Wait at least two hours before coating application. The coating may be applied by dipping, flowing, spinning, rolling or spraying.
For spray application of the coating, an HVLP spray gun with a nozzle size of < 1.0 mm is recommended, and the pressure should be set to approximately 25 to 30 psi. For best coating performance, use the coating solution within 24 hours after mixing, or store the mixed solution in a freezer for later use. If stored in freezer, warm the solution up to room temperature before application.- Clean Up
Clean tools and flush equipment thoroughly with acetone before product dries. Once coating is dry, the tools will not clean with acetone or any other solvent.
Properties
- Physical Form
- Physical Properties
- Technical Data
- Abrasion Resistance
* Taber abrasion test, polycarbonate substrate, CS - 10F wheels, 500g load, 500 cycles
| Value | Units | Test Method / Conditions | |
| Viscosity (at 20°C, Mixed) | 5 - 15 | cP | — |
| Abrasion Resistance (Δ Haze)* | max. 2 | % | ASTM D1044 Taber Abrasion Test |
| Value | Units | Test Method / Conditions | |
| Coverage | 700 - 1,000 | ft²/gallon | — |
| Cured Film Thickness | 3 - 10 | μm | — |
| Curing Temperature | min. 85 | °C | — |
| Induction Time | 2 | hours | — |
| Mix Ratio (A:B, by weight) | 3 : 1 | — | — |
| Water Contact Angle (On Fully Cured Coating) | 95 - 105 | degree | — |
Technical Details & Test Data
- Surface Preparation
Ensure surfaces to be coated are clean and dry – the surfaces should be water-break free before coating application. The coating can be applied with or without the use of a primer depending on the substrate. NEI supplies a primer product, NANOMYTE® SR-Primer, which works well with a range of plastics. The primer may be applied by dipping, flowing, spinning, rolling or spraying.
For spray application of the primer, an HVLP spray gun with a nozzle size of < 1.0 mm is recommended, and the pressure should be set at approximately 25 to 30 psi. The primed parts should then be dried at 70ºC for 10 min before application of NANOMYTE® SR-200EC.- Curing Conditions
NANOMYTE® SR-200EC is thermally cured at an elevated temperature. Recommended curing conditions:
- PMMA: 4 hours at 85°C
- Polycarbonate: 1 hour at 120°C
- Other: 30 minutes at 150°C (for substrates that can withstand high temperatures)
Shorter cure times / reduced temperatures may also be used depending on surface properties and performance requirements; test samples for desired performance when deviating from recommendations.
Packaging & Availability
- Available Quantities
NANOMYTE® SR-200EC is a 2-part coating, sold in liter or gallon kit quantities.
SR-200EC 1 Liter Kit 1 Gallon Kit 5 Gallon Kit (Part A) 750 grams 2850 grams 14.25 kg (Part B) 250 grams 950 grams 4.75 kg
Storage & Handling
- Storage and Handling
Precautions for Safe Handling
Personal protective equipment should be used at all times. Avoid contact with eyes, skin, and clothing. Provide good ventilation or extraction and avoid prolonged or repeated breathing of vapor. Keep away from heat, sparks, flames and other sources of ignition. Wash hands thoroughly after handling. Do not let product enter drains.
Conditions for Safe Storage
Keep containers for Part A & B tightly closed in a dry and well-ventilated place. Flammable mixtures may exist within the vapor space of containers at room temperature. Store away from heat, amines, moisture, and water. Minimize sources of ignition, such as static build-up, heat, spark or flame.
Keep parts separate until ready to use. Once mixed, use the coating solution within 24 hours after mixing, or store the mixed solution in a freezer for later use. If stored in freezer, warm the solution up to room temperature before application. Opened containers must be carefully resealed and kept upright to prevent leakage. May form peroxides upon prolonged storage or in contact with air. Test for peroxide formation periodically and before distillation.