EASTM THERMAL INSULATING MATERIALS COMPANY LIMITED
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  Pertile is an acidic volcanic glass with pearl structure. After heating, it can expand to 12-15times, It possesses the characteristics of very light, thermal insulation,sound insulation, strong ab-sorption etc--- It is used in such industries as new build-ing materials, petroleum chemistry, metallurgy, casting, agriculture, food filter, and environment protection.

Chemical elements

Element S1O2 At2O3 Fe2O3 CaO MgO K2O Na2O
Content 73.4 13,47 1.24 2.49 0.19 3.SS 3.05

 

EASTM EXPANDED PERLITE PIPE AND BOARD

Technical Data Sheet

Properties

Physical Index

Item

Unit

EASTM

ASTM-C610-95

Density

kg/m³

Min 196

Min 192

Max 220

Max 224

Use temperature

 15~+650

 27~+649

Thermal conductivity,                                           W/m/ K, max

93

0.072

0.079

149

0.079

0.086

204

0.081

0.095

260

0.093

0.106

316

0.103

0.111

371

0.116

0.126

Flexural strength, min

kPa

320

310

Compressive strength at 5%, deformation, min

kPa

423

414

Weight Loss by Tumbling, % loss in wieght after 10 minutes

max

60

70

Moisture content, % by weight

max

5

10

Water absorption rate, % by weight

max

2

-

Linear Shrinkage, % at 649 for 24 h, max

length

1.8

2

width

1.8

2

thickness

8

8

Surface burning characteristics

 

 

 

Flame spread

max

0

0

Smoke developed

max

5

5

 

EASTM EXPANDED PERLITE POWDER

Technical Data Sheet

Properties

Physical Index

Item

Unit

EASTM-1

ASTM-C549-81

Density

kg/m³

Min 48

Min 32

Max 80

Max 176

Use temperature

 -300~+800

 -273~+796

Thermal resistance for 1-in. thickness                                           m2 K/W  at                                                 density: (32-65.6) kg/m3

4

0.78-0.69

0.78-0.69

24

0.65-0.58

0.65-0.58

41

0.65-0.56

0.65-0.56

Grading                                                         grading 1.2 mm  sieve-  max. retained by weight

%

10

---

Grading                                                         grading 0.15 mm  sieve-  min. retained by weight

%

65

---

Organic content, by weight, max.

%

0.1

---

Small-scale fire test

 

No sparking or ignition

No sparking or ignition

Combustibility (by test method E 136)

 

Noncombustible

Noncombustible

Moisture absorption, weight %/14 days, max

%

0.50

1.00

Chemical composition: %

SiO2

72-76

---

Al2O3

13-17

Fe2O3, CaO

0.2-1.5

K2O

3.5-5.5

Na2O

2-4.5

 




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