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Suzhou Jufeng Electrical Insulation System Co., Ltd.

Jf-6441-E Epoxy Pre-Submerged Materials manufacturer / supplier in China, offering Jf-6441-E Epoxy Pre-Submerged Materials, Epoxy-Resin Prepreg Nomex Flexible Laminates Nomex with Heat-Resistant Epoxy Resin, Rich Resin Mica Tape and so on.

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Jf-6441-E Epoxy Pre-Submerged Materials

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Product Description

1.Description
    JF-6441-E epoxy pre-submerged materials is obtained after baking the epoxy-soaked soft material, which is a lamination of polyester films and polyester fiber non-woven fabrics. It cures rapidly under the curing temperature of 150. Appliction of this product is found in the insulation for copper foil and aluminum foil packed layers in low voltage coils in dry transformers and in insulation between grooves and coil turns in Grade B and Grade F motors and electrical equipments.
2.Technical parameters of the product
S/N
Name of the targets
Unit
Target values
1
Nominal thickness
mm
0.16
0.18
0.20
0.23
0.25
0.40
2
Allowable deviation on thickness
mm
±0.03
±0.035
±0.04
3
Tensile strength
no bending lengthwise
N/10mm
≥70
≥80
≥100
4
Content of resin
g/m2
≥50
5
Content soluble resin
g/m2
≥45
6
Content of volatile matter
%
≤1.5
7
Electrical strength
MV/m
≥40
8
Tensile and shearing strength
MPa
≥3.0
Note: Subject to separate discussions, users'''' specific requirements can be met.
3.Application process for reference
(1).The site should be kept clean. Dust and grease should be avoided as they might adversely affect product''s adhesive and electric performance.
(2).Ambient temperature should be controlled at around (25±5). Temperatures lower than that will affect levelness; while temperatures higher than that may cause back-sticking and dust can easily stick, which eventually undermine the final quality of work-pieces. 
(3).Recommended curing temperature is (150±2) for 3 hours baking or (130±2) 5 hour in oven. If conditions allow, certain pressure should be applied during curing so as to promote mechanical properties effectively.
(4).This product is valid for 6 months under 25. Please use it during this period.
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