NINGBO RUIFENG SEALING MATERIALS CO.,LTD
NINGBO GONGYAO SEALING MATERIALS CO.,LTD
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SERIES OF ASBESTOS PRODUCTS  

    The series of asbestos products handled and exported by our corporation consist of asbestos yarns ,asbestos packing ,asbestos tape ,asbestos cloth ,asbestos gloves ,compressed asbestos fibre joint sheets and lubricate asbestos packing ,etc .Possessing the properties of fireproof ,heat insulation ,thermal retention ,electric insulation and alkali resistance ,etc .These gasket and sealing stuff are essential to modern machinery ,electrical machinery ,steamship boiler ,electrical engineering and other industries .
     Our asbestos products are made of high quality materials with skillful workmanship .With their excellent quality and complete range of specifications ,they are warmly welcomed by customers both at home and abroad .
There are two type of asbestos fiber yarn, dust free and with dust
     Dust free yarn: composed of around 99% asbestos fiber and 1% chemical powder, color: white, temperature: 550℃ degree .
Dust yarn: composed by around 70-85% asbestos fiber and 15-25% cotton fiber, color: white, temperature: 250-550℃ degree, according to quality grade of asbestos fiber, it can be divided into five grades: common, A grade, AA grade, AAA grade, and AAAA grade, different grade has different temperature resistance and tensile strength, the yarn can be reinforced by glass - fiber yarn, brass yarn, and stainless steel yarn according to requirements.

Grade

C

B

A

AA

AAA

AAAA

Asbestos content

≥75%

≥83%

≥86%

≥93%

≥97.5%

≥99.6%

Ignition loss

32.1%~35%

28.1%~32%

24.1%~28%

19.1%~24%

15.1%~19%

≤15%

Refractoriness

≤250℃

≤300℃

≤350℃

≤400℃

≤450℃

≤550℃

 

Dust Free Asbestos Cloth To Top

   Interwoven from asbestos warp and weft yarns, suitable for lagging for boilers and pipe lines ,used as thermal insulating materials for factories ,building ,power stations and steamers .Also ideal for making protective gloves ,working clothes and gasket materials at temperatures up to 550℃.Loss on ignition 32% max.
Asbestos cloth with metallic (copper wire ,inconel wire or stainless wire) are also available.
Refractoriness:250-550℃                                                                                                Refractoriness of dust free asbestos cloth :480-550℃
Spec:Thickness:1.0 mm-4.0mm
Width:1000-1500mm

Thickness

Width
(m)

Net wt.per roll
(kg )

Length per roll
(m)

Unit Wt.(max.)
(Kg/M2)

Ends per
10 cm

Thensile strength
(Kg .min.)

Inch

mm

1/16

1.6

1

50

36

1.38

66

34

45

20

3/32

2.4

1

50

27

1.85

60

30

50

26

1/8

3.2

1

50

21

2.38

84

60

80

45

3.0

22

2.27

52

26

60

30

Dusted Asbestos Cloth
Asbestos Cloth Coated Aluminium To Top

     The Aluminium foil coated on the surface of asbestos cloth.It is used in fireproof cloth . The cloth with metallic (copper wire ,inconel wire or stainless wire) are also available.
Refractoriness:300-550℃
Spec:Thickness:1.5mm-3.0mm
Width:1000mm

Thickness

Width
(m)

Net wt.per roll
(kg )

Length per roll
(m)

Unit Wt.(max.)
(Kg/M2)

Ends per
10 cm

Thensile strength
(Kg .min.)

Inch

mm

1/16

1.6

1

50

35.96

1.39

66

34

45

20

3/32

2.4

1

50

26.97

1.85

60

30

50

26

1/8

3.2

1

50

20.98

2.38

84

60

80

45

3.0

21.98

2.27

52

26

60

30

Dusted Asbestos Tape To Top
  Interwoven from asbestos warp and weft yarns ,suitable for lagging for boilers and pipe lines ,also used as thermal insulating materials. Asbestos tape with metallic (copper wire ,inconel wire or stainless wire) are also available.
Refractoriness:280-550℃                                                                                               
Spec:Thickness:1.5mm-3.0mm
Width:20mm-150mm
Dusted Free Asbestos Tape To Top

    Interwoven from asbestos warp and weft yarns ,suitable for lagging for boilers and pipe lines ,also used as thermal insulating materials. Asbestos tape with metallic (copper wire ,inconel wire or stainless wire) are also available.
Refractoriness:480-550℃                                                                                               
Spec:Thickness:1.5mm-3.0mm
Width:20mm-150mm

Asbestos Graphited Tape To Top

    Interwoven from asbestos warp and weft yarns,suitable for lagging for boilers and pipe lines ,also used as thermal insulating materials,has excellent heat-resistant on surface .
Refractoriness:550℃
Spec:Thickness:1.5mm-3.0mm
Width:20mm-150mm

Dust Free Asbestos Braided Rope To Top

    It is made of long asbestos fiber yarn and braided into round form ,extensively used as heat insulation materials on thermal installations and heat conduction systems operated at temperatures up to 250℃,loss on ignition 32% max.
Braided asbestos round rope with metallic (copper wire ,inconel wire or stainless wire) are also available.
Refractoriness:480-550℃                                                                                         
Spec:5mm-50mm

size

net weight per coil

Round Rope

Square rope

Length per coil (approx.)

Length per coil (approx.)

inch

mm

kg

m

m

1/4

6.4

5

168

138

5/16

8

5

111

93

3/8

9.6

5

72

67

1/2

12.7

10

83

77

5/8

16

10

65

61

3/4

19.2

10

41

39

7/8

22.4

10

31

27

1

25.4

10

26

22

1-1/8

28.6

10

21

19

1-1/4

32

10

17

14

1-1/2

38.1

10

11

11

1-3/4

44.5

10

9

8

2

50.8

10

6

6

Dusted Asbestos Braided Rope
Twisted Asbestos Yarn To Top

Twisted with two or more strands of asbestos fiber.Extensively used as culking,sealing and heat insulation materials on thermal installations and heat conduction systems operated at temperatures up to 250-550℃,And also used for making other asbestos products. Twisted asbestos yarn with metallic (copper wire ,nickel wire or stainless wire) are also available.
Refractoriness:250-550℃                                                                                 
Spec:0.6mm-50mm 

size

Inch

1/16〞

5/32〞

3/16〞

1/4〞

5/16〞

1/2〞

5/8〞

3/4〞

1〞

mm

1.6

4

4.8

6.4

8

12.7

16

19.2

25.4

weight per coil

kg

0.5

2.5

2.5

2.5

2.5

5

5

5

10

length per coil

m

250.4

198.5

128.3

88.4

50.4

37.9

25.2

18.1

20.7

Dust Free Twisted Asbestos Yarn To Top

Twisted with two or more strands of dust free asbestos fiber.Extensively used as culking,sealing and heat insulation materials on thermal installations and heat conduction systems operated at temperatures up to 480-550℃,And also used for making other asbestos products. Twisted asbestos yarn with metallic (copper wire ,inconel wire or stainless wire) are also available.
Refractoriness:480-550℃                                                                                 
Spec:0.6mm-50mm 

size

Inch

1/16〞

5/32〞

3/16〞

1/4〞

5/16〞

1/2〞

5/8〞

3/4〞

1〞

mm

1.6

4

4.8

6.4

8

12.7

16

19.2

25.4

weight per coil

kg

0.5

2.5

2.5

2.5

2.5

5

5

5

10

length per coil

m

250.4

198.5

128.3

88.4

50.4

37.9

25.2

18.1

20.7

Asbestos Tape with Rubber To Top

    It is made by asbestos cloth coated with rubber and compressed into tape shape .Used as lining and sealing. Asbestos tape with rubber reinforced with metallic(copper wire ,inconel wire or stainless wire )are also available.
Refractoriness:280-450℃
Spec:Thickness:3mm-25mm
Width:20mm-200mm

Asbestos Millboard To Top

    Made from high grade asbestos fiber, used for make fire screens, protecting walls, lining furnaces and anything that required heat and fire protection. It can also be used as electrical insulation.
Max.Working pressure :15kgs/cm2
Refractoriness:Approx.280℃~500℃
Spec :Thickness:0.8mm-50mm
Dimention:1000 x1000mm

Asbestos Gaskets To Top

    It is seal materials made by choosing asbestos fiber rubber beaten and operated ,which is basic materials for made explosion engine cylinder gasket and chemical gasket. Nonasbestos fiber gasket are also available.
Max.Working pressure :40kgs/cm2
Refractoriness:Approx.400℃~500℃
Spec :Thickness:0.5mm-1.5mm
Dimention:1000 x1200mm

Asbestos Gloves/Asbestos Mitten To Top

      Made of asbestos cloth and cotton cloth .For protection from heat when working at high temperature up to 250℃.Loss on ignition:32% max. .
Asbestos gloves coated with ALUMINIUM FOIL are also available.
Refractoriness:300-550℃
Spec :12”,15”,18”

Asbestos Rubber Sheet To Top

   Manufactured from asbestos fiber and rubber compounded and compressed into sheet forms .Suitable as a jointing medium on heat installations and low pressure water and steam pipeline. J301 Working pressure :15kg/cm2,Temperature :200℃
Also available:                                                                                                                              J302 Middle pressure jointing sheet (pressure :40kg/cm2 temperature :350℃)
J303 High pressure jointing sheet (pressure :60kg/cm2 ,temperature :450℃)
Noasbestos jointing sheet are also available .
J304 Compressed Asbestos Fiber Jointing Sheet With Graphited
J307 Compressed Asbestos Fiber Sheet With Metallic Wire
pressure :60kg/cm2 ,temperature :450℃
J307-2 Compressed Asbestos Fiber Sheet With Metallic Wire & Graphited
J308 Oil Resistant Jointing Sheet
Spec :thickness :0.5mm-6.0mm
Dimention :1300×1500mm

Steel Asbestos Graphite Gasket To Top

     Compounded by adopting metal sheet and asbestos gasket .It is used to sealing explosion engine cylinder gasket and chemical gasket .
Steel nonasbestos gasket are also available .
Max.Working pressure: 90kgs/cm2
Refractoriness:Approx.400℃~500℃
Spec :Thickness1.0mm-3.0mm
Dimention:500 x1000mm                                                                                          

Asbestos Power Gaskets To Top

     Compounded by adopting metal sheet and asbestos gasket .It is used to sealing explosion engine cylinder gasket and chemical gasket .
Steel nonasbestos gasket are also available .
Max.Working pressure :40kgs/cm2
Refractoriness:Approx.400℃~500℃
Spec :Thickness1.2mm-3.0mm
Dimention:500 x1000mm

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