Prolongs the liquid state of metal, thus avoiding shrinkage.
An addition of 1 to 10 % of Carbofoil Expandable Graphite increases effectiveness, thus reducing the volume of other materials used by up to 50%.
Gives a very soft crust and a soft shrinkage pattern.
Description
Expandable Graphite is material based on natural graphite with excellent insulating properties. When heated to 900ºC it expands several times, depending on the grades used. It is extremely effective when used with normal exothermic or insulating type anti-piping compounds, casting powders and bottom poured teeming compounds.
EXPANDABLE GRAPHITE
Expandable Graphite is material based on natural graphite with excellent insulating properties. When heated to 900ºC it expands several times, depending on the grades used. It is extremely effective when used with normal exothermic or insulating type anti-piping compounds, casting powders and bottom poured teeming compounds.
ADVANTAGES
Prolongs the liquid state of metal, thus avoiding shrinkage.
An addition of 1 to 10 % of Carbofoil Expandable Graphite increases effectiveness, thus reducing the volume of other materials used by up to 50%.
Gives a very soft crust and a soft shrinkage pattern.
TECHNICAL DATA
GRADES
DW-20
CF-40
CW-60
CW-100
Ash
9-15
25-28
9-15
9-15
pH
6-7.5
8-9
6-7.5
6-7.5
Expansion cc/gm/900ºC for 5 minutes
20 cc min.
40 cc min.
60 cc min.
100 cc min.
Mesh
PERCENTAGE RETAINED
+60
20-30%
30-35%
30-40 %
50-60 %
+100
30-40%
20-30%
30%
10-20%
+150
20
15-20%
20-25%
10-15%
-150
10-20%
20-30%
20-25%
10-15%
Key attributes
Category
Chemicals
Place of origin
Bangalore, KA, India
Certificates
BS 5852 source 5
BS 5852 source 7
Reviews
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