Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Composite Materials Functions
- Technologies
- Product Families
Features & Benefits
- Materials Features
- Features
Excellent hydrolytic stability, ie resistance to water. It is characterized by good mechanical properties and excellent ability to permeate the fabric or mat. Contains at least 67% non-volatile substances. It is possible to achieve values significantly lower than required by the existing or proposed legislation. This reduction in styrene emissions is achieved without any reduction interlaminar (interlayer) adhesion.
- Advantages
It is characterized by the following advantages
Fast lamination curing, allows to increase production speed without loss of surface properties due to shrinkage. Allows you to reduce the time normally needed for additional post tempering. Because it allows faster mold turnover, it is saving on the number of molds. It ensures a good relationship with osmosis and reduced blistering. It is characterized by good physical properties Approved by the Lloyd's Register.
- Additives
Some pigments, fuels or the addition of styrene can adversely affect the spray and the final properties of the H834 resin. Therefore, before any widespread use, these should the ingredients should be assessed.
Applications & Uses
- Applications
- Composites Processing Methods
- Applications
Polyester resin H 834 should have a workshop temperature of 18 - 32 ° C, at humidity 40-90% rel .. To start the curing reaction, it is sufficient to add Butanox M 50, which should be added to the resin add 1.25% or 2%. These are the conditions for ensuring the production of quality parts.
Application rules
The expected curing characteristics allow the H 834 polyester resin to be secondary curing very soon. After curing for 24 hours, it may be necessary to sand the laminate in order to secondary curing is ensured, especially if the laminate is thicker. Ensures low glass content and resin with this product. To ensure adequate crosslinking of the gelcoat, the manufacturer should use a thin one for a smooth surface layer of gelcoat. Chemical resistance studies show that the resin is not suitable for petrol tanks.
Properties
- Physical Form
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Tensile Strength | 62 | MPa | — |
| Modulus of elasticity | 3,9 | GPa | — |
| shrinkage | 2 | % | — |
| Flexural Strength | 97 | MPa | — |
| module in bending | 4,1 | GPa | — |
| Temperature Resistance | 95 | °C | — |
| Viscosity | 425- 600 | cps | — |
| thix index, 6/60 | 3,2 | — | — |
| styrene Content | 34 | % | — |
| Geltime, 100g | 30 | minutes | — |
| Total vytvrz.cas | 42 | minutes | — |
| peak exotherm temperature | 145 | °C | — |
Packaging & Availability
- Packaging
Polyester resin H 834 is supplied in packages of 220 kg barrels and at the customer's request spills.
Storage & Handling
- Storage
Polyester resin H 834 is stable for six months from the date of manufacture, if any stored in original containers stored out of direct sunlight at a temperature of no higher than 21 ° C. If the storage time and storage conditions are exceeded, a gel may form. During the hot summer months, the stability of the resin is predicted at 30 ° C for about 2 months. Consistent storage conditions help maintain gelation times and viscosity.