Enhanced TDS
Knowde-enriched technical product data sheet
Identification & Functionality
- Chemical Family
- Polymer Name
- Reinforcement Form
- Composite Materials Functions
- Technologies
- Product Families
Features & Benefits
Applications & Uses
- Compatible Reinforcements
- Composites Processing Methods
- Applications
espol™ 12.20 should be stored between 5°C and 25°C in the original, unopened container in a dry, well ventilated place. Protect from freezing and direct sunlight. Avoid contact with oxidizing agents. If stored outside of these recommendations, shelf life will be significantly reduced.
- Formulation Guidelines
- espol™ 12.20 should be allowed to attain workshop temperature (25°C - 30°C) before use. Stir well by hand, or with a low shear mixer to avoid aeration, and then allow to stand to regain thixotropy. espol™ 12.20 requires the addition of accelerator and catalyst to start the curing reaction.
- The recommended accelerator is Cobalt (1% solution in styrene) which should be added to the resin at 1 - 2% and thoroughly incorporated into the resin, using a low shear mechanical stirrer where possible.
- The recommended catalyst is Trigonox 21S which should be added to the resin at 0.5 - 1% and thoroughly incorporated into the resin, using a low shear mechanical stirrer where possible.
N.B. Catalyst and accelerator must not be mixed directly together since they can react with explosive violence.
Properties
- Physical Form
- Appearance
- Colourless clear viscous liquid
- Cured Properties
Value Units Test Method / Conditions Barcol Hardness 40 - IS 6746-1994 (Reaffirmed 2005) Deflection Temperature under Load (1.80MPa)* 65 - 70 ºC IS 6746-1994 (Reaffirmed 2005) Tensile Strength* 45 - 55 MPa IS 6746-1994 (Reaffirmed 2005) Tensile Modulus* 3000 - 3100 MPa IS 6746-1994 (Reaffirmed 2005) Elongation at Break* 1.5 - 2.5 % IS 6746-1994 (Reaffirmed 2005) Flexural Strength* 90 - 100 MPa IS 6746-1994 (Reaffirmed 2005) Flexural Modulus* 3000 - 3200 MPa IS 6746-1994 (Reaffirmed 2005) - Uncured Properties
Value Units Test Method / Conditions Specific Gravity 1.11 - 1.13 - IS 6746-1994 (Reaffirmed 2005) Viscosity (at 25°C)**** 400 - 800 cP IS 6746-1994 (Reaffirmed 2005) Acid Value max. 25 mg KOH/g IS 6746-1994 (Reaffirmed 2005) Volatile Content 31 - 35 % IS 6746-1994 (Reaffirmed 2005) Gel Time (at 25°C)** 9 - 15 min IS 6746-1994 (Reaffirmed 2005) Gel Time (at 140°C)*** 4 - 10 min IS 6746-1994 (Reaffirmed 2005), SPI Peak Exotherm Temperature** 5 - 10 ºC IS 6746-1994 (Reaffirmed 2005) - Note
- *Curing Schedule - 24 hours at 20°C, 6 hours at 80°C.
- **100g resin + 2ml Cobalt (1%) + 1.5ml MEKP (50%) catalyst.
- ***SPI test – 100 gm resin with 1.8ml Cobalt (1%) + 0.6 ml Trigonox 21S catalyst .
- ****Viscosity measured using Brookfield (RVT Model) Viscosity SPL 1 / SPD 10
Technical Details & Test Data
- Post Curing
Satisfactory laminates for many applications can be made from espol™ 12.20 by curing at workshop temperature (25°C). For optimum properties, however, laminates should be post-cured before being put into service. The laminate should be allowed to cure for 24 hours at 25°C, and then be oven cured for a minimum of 6 hours 80°C.
Packaging & Availability
- Packaging Type
- Packaging Information
espol™ 12.20 is available in 35kg, 220kg and bulk containers.
Storage & Handling
- Shelf Life
- 3 Months
- Storage Conditions
espol™ 12.20 should be stored between 5°C and 25°C in the original, unopened container in a dry, well ventilated place. Protect from freezing and direct sunlight. Avoid contact with oxidising agents. If stored outside of these recommendations, shelf life will be significantly reduced.