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

• RM 2000 have been designed to polymerize at room temperature following addition of MEKP(with min 9% active oxygen content)
• Rapid cure and rapid manufacture of the mould (in one day).
• A easy to use product, pre-filled and pre-accelerated, with no further mixing required.
• Fillers: reduce the cost and improve rigidity of the mold. ADVANTAGES
• Rapid cure and rapid making of moulds.
• NO shrink. Low profile surfaces.
• Reduction of mould cost.
• Complete dimensional stability.
• 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 3M

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 (mins)	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

Note: European Versions of NORD RM 2000 or RM 2000 -50 , please check with your sales representative, before proceeding.

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:

3M Corporation

541 NW Interpark Place
St. Lucie, FL 34986

Tel: (772) 343-7300
Fax: (772) 343-9700

Email: sales@nida-core.com

3M Express
1-800-998-9796