m-Phenylneopentyl Glycol Gelcoat
Neogel? 8575-W-XXXX has been widely used in sanitary ware, swimming pools, boats, water rides, and other applications that require higher water and weather resistance.
Characteristic performance
Neogel? 8575-W-XXXX is an isophthalic neopentyl glycol gelcoat with an excellent combination of properties. It is easy to use and has excellent defoaming and mechanical properties. Its long-term hot water resistance (high resistance to blistering), weatherability (resistance to yellowing) and curing in high humidity environments are particularly outstanding.
Usage characteristics
Neogel? 8575-W-XXXX is a pre-promoted, thixotropic gelcoat. For the following process types, Neogel? 8575-W-XXXX is available in a wide range of colors:
- Spray process (gelcoat grade 8575-W-XXXX)
- Hand lay-up process (gelcoat grade 8575-W-XXXX H)
In addition, Neogel? 8575-W-XXXX can be used in some of the following processes: - Air-dry spray molding process (gelcoat grade 8575-T-XXXX)
- Air-drying hand lay-up molding process (gelcoat grade 8575-T-XXXX H)
When using jetting equipment, we recommend that customers operate under the following conditions:
- For compressed air guns, a nozzle diameter of 2.0-3.5 mm and a spray pressure of 4-5 atmospheres are required.
- For non-airborne guns, tip size recommendations are: 18/40-21/40
In order to obtain the best results, we recommend that our customers ensure the following construction conditions:
- Gelcoat use at 18°C to 25°C
- Use MEKP* curing agent solution at a concentration of 501 TP3T in a dosage of 1.01 TP3T - 2.51 TP3T.
- Coating thickness not less than 600-800g/m2
*Butanox M50 (Akzo Nobel)
Packaging, storage and custody
Neogel? 8575-W-XXXX is available in packages of approximately 22 kg. Store Neogel? 8575-W-XXXX in its original unopened packaging at a temperature of not more than 20°C. Avoid direct sunlight. Avoid direct sunlight and heat sources. In this way, Neogel? 8575-W-XXXX has a stabilized storage period of three months from the time of dispatch.
Under our recommended storage conditions, accelerated, green, blue, black and some other dark colors of Neogel? 8575-W-XXXX products have a stabilized storage period of two months from the time of issue.
Neogel? 8575-W-XXXX has a flash point >21°C and is flammable. Keep the product away from open flames during storage and use. Refer to the product safety data sheet for specific information.
Typical matrix gel coat liquid properties
| performances | Test Methods | unit (of measure) | Typical Values for Hand Layup Matrix Gelcoat | Typical values for spray matrix gelcoat |
|---|---|---|---|---|
| exterior condition | TM 2265 | - | thixotropic liquid | thixotropic liquid |
| Viscosity at 25°C (rotor No. 4, rpm2) | TM 5042 | mPa.s | 18000-52000 | |
| Viscosity at 25°C (rotor #4, rpm20) | TM 5042 | mPa.s | 5700-7300 | 3000-6400 |
| Gel time at 25°C | TM 2245 | minutes | 12-18 | 8-15 |
Typical Matrix Gelcoat Casting Body Properties
| performances | Test Standards | unit (of measure) | Typical values for white gelcoat for hand lay-up | Typical values for white gel coat for spraying |
|---|---|---|---|---|
| Barcol Hardness (*) (**) | D 2583-67 | - | 40-45 40-45 | 20-25 40-45 |
| Tensile strength (**) | D 638 | MPa | 50±5 | 50±5 |
| Tensile modulus (**) | D 638 | MPa | 3650±150 | 3800±150 |
| Elongation at break (**) | D 639 | % | ≥2.5 | ≥2.5 |
| Bending strength (**) | D 790 | MPa | 95±5 | 85±5 |
| Bending modulus (**) | D 790 | MPa | 3300±150 | 3600±150 |
| Heat deflection temperature (**) | D 648 | ℃ | ≥95 | ≥95 |
Neogel? 8575-W-XXXX Gelcoat Water Absorption Test (**)
| performances | unit (of measure) | Typical values for white gelcoat for hand lay-up | Typical values for white gel coat for spraying |
|---|---|---|---|
| RINA/Lloyd's Register | mg | <60 | <60 |
| RINA/Lloyd's Register | % | <0.40 | <0.40 |
| Det Norske Veritas | mg | <80 | <80 |
| Det Norske Veritas | % | <0.30 | <0.30 |
| ASTM D 570 | mg | <11 | <12 |
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