South India Lead Manufacturers Association

RED LEAD

SILMA members are leading Red Lead Manufacturer. We have a technologically efficient facility to manufacture red lead powder and supply globally. Red Lead is a bright red to orange, red powder which is used in making Lead glass and red pigments; paint made with Red Lead is commonly used to protect iron and steel from rusting. Chemically, Red Lead is Lead tetra oxide, Pb₃O₄, a water-insoluble compound that is prepared by the oxidation of metallic Lead or of litharge (Lead monoxide). The commercial product sometimes contains litharge as an impurity.

RED LEAD SPECIFICATIONS

CHARACTERISTICS

UNITS

SPEC. LIMITS
Red Lead as Pb₃O₄

%

80 - 90
PbO₂

%

28 - 31.5
Free Lead

%

1% Max
Apparent density

gms/cc

1.3 - 1.6
Water Absorption

mg/g

100 - 140
Acid Absorption

mg/g

160 - 210
Fineness in ASTM 200 mesh

%

99.50 Min

CHARACTERISTICS	UNITS	SPEC. LIMITS
Red Lead as Pb₃O₄	%	80 - 90
PbO₂	%	28 - 31.5
Free Lead	%	1% Max
Apparent density	gms/cc	1.3 - 1.6
Water Absorption	mg/g	100 - 140
Acid Absorption	mg/g	160 - 210
Fineness in ASTM 200 mesh	%	99.50 Min

Products Range from Members

PURE
LEAD

LEAD SUB OXIDE

RED
LEAD

LEAD ANTIMONY ALLOY

LEAD CALCIUM ALLOY

RED LEAD

RED LEAD SPECIFICATIONS

CHARACTERISTICS

UNITS

SPEC. LIMITS
Red Lead as Pb₃O₄

%

80 - 90
PbO₂

%

28 - 31.5
Free Lead

%

1% Max
Apparent density

gms/cc

1.3 - 1.6
Water Absorption

mg/g

100 - 140
Acid Absorption

mg/g

160 - 210
Fineness in ASTM 200 mesh

%

99.50 Min

CHARACTERISTICS	UNITS	SPEC. LIMITS
Red Lead as Pb₃O₄	%	80 - 90
PbO₂	%	28 - 31.5
Free Lead	%	1% Max
Apparent density	gms/cc	1.3 - 1.6
Water Absorption	mg/g	100 - 140
Acid Absorption	mg/g	160 - 210
Fineness in ASTM 200 mesh	%	99.50 Min

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Products Range from Members

PURE
LEAD

LEAD SUB OXIDE

RED
LEAD

LEAD ANTIMONY ALLOY

LEAD CALCIUM ALLOY

Technical Junction

Scholars and Entrepreneurs with dedicated thought for Lead & Lead Alloys are welcomed.

The association strongly believes in a common fundamental aspect and that is, the more you have technical knowledge, the more stronger you will be. This is why, association decided to cater the technical knowledge to Battery industrialist. Here we share some knowledge on specially Lead, Lead Alloy and Lead Oxides.
If you have some technical knowledge to share with industry, you are most welcome.
Let's Move and Grow Together.

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We collaborate with ambitious brands and people;
let's build stronger Battery Industry & stronger Nation together. We collaborate with ambitious brands and people; let's build stronger Battery Industry & stronger Nation together.

South India Lead Manufacturers Association (SILMA) is a newly formed Association with various objectives in meeting out the demands and Challenges of the Lead Manufacturing Industry in India. The SILMA comprises of 50 Lead Recycling units from 5 Southern states Kerala, Karnataka, Tamilnadu, Andhra Pradesh & Telangana.

PRODUCTS

Pure Lead
Lead Sub Oxide
Red Lead
Lead Antimony Alloy
Lead Calcium Alloy

TECHNICAL JUNCTION

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