One of the world-class leader in Foam Crosslink Polyethylene.

Thai Sekisui Foam Co., Ltd. is a joint venture between SEKISUI CHEMICAL CO., LTD.. Japan's leading plastics manufacture, and S.P. International Co. Ltd. of Thailand. Its factory, located in the AMATA NAKORN ( Bangpakong Industrial Park II ) Chonburi, Thailand.

With headquarters in Japan, the Foam Division of Sekisui Chemical has operations worldwide including manufacturing facilities in the East Asia, Europe, South East Asia, Oceania, North - Central and South of America. The company principal product is close-cell cross-linked polyethylene foam under the internationally　recognized "SOFTLON®" brand.


"Softlon®"

FIRST IN THE WORLD

"Softlon®" was born in 1965 through a unique idea - the irradiated crosslinking process. We are the first in the world to pioneer this unsurpassed production technology, following many years of extensive research and feasibility studies.

"Softlon®" is a flexible thermal insulation that made from closed cell, crosslinked polyolefin foam. The crosslinking process utilized in the production of the material, as well as, its closed cell structure, results in the insulating properties that are superior to conventional fiberglass, rubber based and non crosslinked product.

A very low of thermal conductivity value (k), and negligible water absorption and vapour transmission rates reflect in its superior energy saving performance, in a variety of environment friendly.

"Softlon®" is very easy to work with - slitting, slicing, laminating, embossing, vacuum forming and so on can all be undertaken easily.

Crosslinking / Non-Crosslinked materials

Crosslinking
The basic polyolefin polymers ( polyethyene, polypropylene ) used for the production of Softlon foams are composed of long chains of carbon (C) and hydrogen (H) molecules.


Non-Crosslinked materials
In normal, non-crosslinked polyethylene materials ( either foams or non-foams) the polymer 'stings' are not linked to each other.

This is why non-crosslinked materials have a sharp and defined melting point (MP) where the polymer chains separate.

Crosslinked materials / Irradiation cross inked

Crosslinked materials
In crosslinked materials the polymer chains of the polymer are chemically linked to each other at certain crosslinkin points there by foaming a 3-dimensional network.

More precisely, crosslinking is accomplished by removal of a hydrogen molecule from the C - C backbone.

Active sites on adjacent chains then react to form a crosslink.

Depending on the number of links between the polymer chains ( narrow or wide-meshed ), the degree of crosslinking varies.

Irradiation cross inked
The removal of the hydrogen molecule from the C - C backbone of the polymer is accomplished by a high energy electron beam scanning the foamable polymer sheet.

PRODUCT

Softlon® is therefore a very versatile and popular material used extensively in the fields of packing, building and construction, sundry goods, etc., that are very easy to work with such as Slitting, Slicing, Laminating, Embossing, Vacuum foaming and so on can all undertaken easily.

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