RM 2000
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RM 2000 is an unsaturated polyester resin, especially formulated for mould making. Filled and pre-accelerated, it is a ready to use product. Obtaining moulds with superior surface profile and ZERO shrinkage.
Characteristics
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RM 2000 have been designed to polymerize at room temperature following addition of MEKP(with min 9% active oxygen content)
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Rapid cure and rapid manufacture of the mould (in one day).
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A easy to use product, pre-filled and pre-accelerated, with no further mixing required.
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Fillers: reduce the cost and improve rigidity of the mold. ADVANTAGES
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Rapid cure and rapid making of moulds.
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NO shrink. Low profile surfaces.
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Reduction of mould cost.
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Complete dimensional stability.
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Uses standard catalyst : MEKP (Peroxide) with min 9% active oxygen content
Advantages and Recommendations
Manufacture of a mould in one day instead of one week using standard resin system.
Gel coat thickness must be between 600 and 800 microns.
Application of Tooling Resin
RM2000 Before use, mix the resin well to achieve a homogeneous product.
For optimum result of cure, don't catalyst under 1% of MEKP (Peroxide) (ask Nida-Core
Corporation for gel time results with different percentages of catalyst if required). To
obtain optimum properties of the tooling resin, we advise to use RM 2000 at temperature
between 18 and 25°C. Low temperatures are not good for the low shrink effect and
high temperatures will give a short gel time.
Hand Lay-Up
When the gel coat becomes tacky, apply some catalyzed resin to wet the surface. This
will aid the wetting out of the glass fiber. Apply a layer of 100 g/m² (10 tex). Remove air
voids with a roller. Apply then 6 layers of 300 g/m² or 4 layers of 450 g/m² (40 tex) to
obtain a thickness of 3 to 4 mm. Remove air voids with a roller between each layer. The
laminate will turn white when curing. Wait for the peak exotherm to subside (about 1
hour) before starting the second laminate. For the second laminate, use 4 layers of 450
g/m² (40 tex). Remove air voids with a roller between each layer and wait for the laminate
to reach peak exotherm again and turn white. Proceed like this until you achieve
the thickness you require.
Spray Up
Tests were made using equipment from GLAS-CRAFT LPAIIS/SP 85 EC.
System pump = 11:1 Gun with Air Assist Containment. Like in the hand lay-up, apply
some catalyzed resin on the polymerized gel coat to wet the surface. Apply a layer of
100 g/m² (10 tex). Remove air voids with a roller. Spray a layer of 3 to 4 mm of resin and
chopped fibers. After it has turned white and the exotherm has died down (about 1
hour), continue until the required thickness is achieved, with subsequent additions of 3
to 4 mm of resin and chopped fibers .
RM 2000 Catalysts
Although Nord Composites recommend the specially developed CATA 2000 for curing the Norester RM 2000, zero shrink tooling resin, it is know that other available catalysts will provide a satisfactory result. The enclosed table give details of alternative catalysts tested by Nord Composites, together with recommendations of suitability.
All tests carried out with 1% catalyst at room temperature (68-77 °F)
|
Trigonox 524 |
Butanox M50 |
Trigonox 44B |
Norox 750 |
Andonox RTM-12 |
Andonox SHP-90 |
Gel Time |
43 |
10 |
42 |
32 |
95 |
37 |
Time to Peak (mins) |
58 |
30 |
60 |
52 |
112 |
52 |
Gel to Peak time (mins) |
15 |
20 |
18 |
21 |
17 |
14 |
|
||||||
Peak Temperature (°F) |
248 |
235 |
221 |
225 |
266 |
250 |
|
||||||
Barcol Hardness (4 hrs) |
25 – 30 |
~ 5 |
25 – 30 |
15 – 20 |
10 – 15 |
~ 25 |
Barcol Hardness (24 hrs) |
40 - 45 |
~ 35 |
40 – 45 |
40 - 45 |
40 – 42 |
40 - 45 |
|
||||||
Recommended |
III |
No |
III |
III |
Star |
III |
Star- Andonox RTM-12 may be used when a long gel time is required, e.g. when producing large moulds, or at high temperatures.
NORD COMPOSITES is distributed in the USA & Canada by:
Nida-Core Corporation
541 NW Interpark Place
St. Lucie, FL 34986
Tel: (772) 343-7300
Fax: (772) 343-9700
Email: sales@nida-core.com
Nida-Core Express
1-800-998-9796
(Contact Sales Representative For Volume Discounts)






