ISO Mechanical Grade - 31.00 |
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| espol™ is the brand name / trademark of the unsaturated polyester resin processed at Satyen Polymers. Our resins are tailor made to meet the diverse needs of GRP / FRP industry. espol™ compiles with requirements of companies interested in improved efficiency and superior performance of their finished product. |
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| PRODUCT FEATURES & BENEFITS: |
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espol™ 31.00 ISOPHTHALIC Polyester based on Isophthalic / superior mixed glycol is a high quality, medium viscosity, medium reactive specially formulated for processes like Filament winding, spray up/hand lay up. It exhibits good chemical resistance and possess superior mechanical and thermal properties. The resin has exceptionally good hydraulic resistance making it an ideal choice for coating / laminating applications. The ISO resin forms strong bond with fiber glass rovings mat and depicts good wetout characteristics due to good weathering properties and retention of glass it is suitable for corrosion resistant applications. |
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| PHYSICAL DATA IN LIQUID STATE AT 250C# [Confirm to IS 6746-1994 and BS 3532 - 1990] |
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| Properties |
Units |
Values |
Test Method |
| Appearance |
- |
Pale Yellow |
(TM-01) |
| Specific Gravity |
- |
1.10 ± 0.02 |
(TM-11) |
Viscosity
• Ford Cup 4 @ 300C
• Brookfield RVT model #
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Seconds
mPa s(cps) |
100 ± 20
500 - 600 |
(TM-04)
(TM-05) |
| Volatile Content |
% |
40 ± 44 |
(TM-08) |
| Acid Value |
mg-KOH/gm |
18 ± 3 |
(TM-06) |
| Gel time @ 300C |
Minutes
Minutes |
15 - 20*
12 - 18 ω |
(TM-07) |
| Peak Exotherm Temp. |
0C |
145 - 165 |
(TM-07) |
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| * Using Accelerator, Co (2%) 1 ml, Catalyst, MEKP1.5ml, the gel time, cure time and Peak Exotherm measured. |
| * Summer ω Winter [TM - Test Method as per ISO-9001-2000-DOC-REV-03] |
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| PROPERTIES OF CAST RESIN LAMINATE: |
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| Properties |
Units |
Values |
Test Standards |
| a) Barcol Hardness |
BHU |
40 |
ASTM D - 2583 |
| b) Heat Distortion Temp. |
0C |
80 ± 5 |
ISO - R75 |
| c) Specific Gravity |
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1.20 ± 0.02 |
ISO - R1183 |
| d) Volume Shrinkage on cure |
% |
7 - 8 |
ISO - 3521 |
| e) Tensile Strength |
N/sq.mm |
55 ± 5 |
ISO - R 527 |
| f) Tensile Modulus |
N/sq.mm |
3300 ± 100 |
ISO - R 527 |
| g) Elongation at break |
% |
2.5 - 3.5 |
ISO - R 527 |
| h) Flexural Strength |
N/sq.mm |
125 ± 5 |
ISO - 178 |
| i) Flexural Modulus |
N/sq.mm |
3400 ± 100 |
ISO - 178 |
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When post cured after maturation. |
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| USAGE: |
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The Isophthalic polyester resin mechanical grade performs best if the laminate is completely post cured. The quantity of catalyst and accelerator can be adjusted to get a shorter or longer geltime. |
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| POST CURING: |
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It is recommended to mature the products for 24 hours and post curing should be done for minimum of three hours at 80°C, or 2-3 weeks at room temperature. This is essential for getting the optimum properties.
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| STORAGE / HANDLING: |
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| The polyester resin remains stable for 3 months at 300C in the dark and 4 months at 250C. The resin stability deteriorates markedly at elevated temperature, especially when exposed to direct sunlight.
espol™ 31.00 has a flash point of 340C and is classified as flammable. "NO SMOKING " rules should be strictly followed. In case of spillage, use sand or earth to absorb and shovel off for disposal as per local regulations, In case of fire, use dry chemical foam, Carbon dioxide or water spray to extinguish the flame. |
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| PACKING: |
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The Polyester resin is packed in HDPE carboys ( 30, 35, 40 & 45 kgs ) and epoxy coated steel drums HDPE barrels
(220 kgs) of standard size net weight. Special packing size offered for projects on returnable containers. Technical services are also provided to comply standards. |
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| HEALTH & SAFETY: |
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Never add metal salts (Accelerator) or Pre Acceleratorated resin to Peroxides when adding peroxides to a resin solution, mix thoroughly the resulting product. Do not add organic peroxides to a hot diluents or process. Prevent contamination of Acclerator, promoter from materials like ( Iron Copper, Cobalt ) salts, storing acids and sanding dusts. Suggested containers are glass, polypropylene, Teflon, Poly-ethylene or stainless steel to prevent contamination of material during its handling.
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