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"J. Allcock & Sons are a supplier, recycler and manufacturer of materials to the polymer industries. We import and export throughout the world, spanning North America, South America, Europe, Africa and Asia.

Our two main areas of expertise are rubber and silicones. We have been manufacturing products for the rubber industry since our birth in 1924 and have been supplying silicones since 1973.

J. Allcock & Sons is a ISO 9001:2015 company. We believe we are probably one of the few if not only rubber recycler in the UK to achieve this accreditation.

Unlike J. Allcock & Sons, Wellington Rubber Company Ltd specializes completely in size reduction rubber recycling.

Company Philosophy:

We aim to provide problem free deliveries: The correct product at the right location on the date required, with goods correctly marked and accompanied by the required documentation. All we ask is a chance to prove ourselves.

We also recognize that price is important, so we aim to be competitive. All we ask in return it to be paid on the mutually agreed date.

We are happy to offer technical advice even if it does not generate immediate business for us. By offering such advice we hope that our customers will be able to trust implicitly what we have to say."

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J. Allcock &amp; Sons NBR Granules is made from the ambient grinding of vulcanized nitrile rubber waste material. This is obtained from a variety of sources.

J. Allcock & Sons NBR Granules

J. Allcock &amp; Sons EPDM Granules is produced by the ambient grinding of EPDM waste / scrap material. EPDM is a rubber made from either a co-polymer of ethylene and propylene – which will be peroxide cured, or a ter-polymer which has a small amount of an unsaturated polymer added – this will be sulfur cured. The two different types are rigorously segregated, both as scrap and as finished crumb (or granules).

J. Allcock & Sons EPDM Granules

J. Allcock &amp; Sons Red 420 is a blue shade red iron oxide pigment.

J. Allcock & Sons Red 420

J. Allcock &amp; Sons Yellow 125 is a yellow iron oxide pigment which is used in the paint and rubber industries to give a distinct yellow color.

J. Allcock & Sons Yellow 125

J. Allcock &amp; Sons Red 490 is a blue shade red iron oxide pigment.

J. Allcock & Sons Red 490

J. Allcock &amp; Sons Brown 895 is a dark brown iron oxide pigment.

J. Allcock & Sons Brown 895

J. Allcock &amp; Sons FKM Crumbs is made by ambient grinding, using specialized machinery, of selected FKM waste. The machinery used enables much finer grades to be produced. Electron microscopy shows the miniscule particles to be “torn” rather than just “cut”. This ensures maximum combination with virgin compound and excellent retention of properties.

J. Allcock & Sons FKM Crumbs

J. Allcock &amp; Sons EPDM Crumbs is produced by the ambient grinding of EPDM waste / scrap material. EPDM is a rubber made from either a co-polymer of ethylene and propylene – which will be peroxide cured, or a ter-polymer which has a small amount of an unsaturated polymer added – this will be sulfur cured. The two different types are rigorously segregated, both as scrap and as finished crumb (or granules).

J. Allcock & Sons EPDM Crumbs

J. Allcock &amp; Sons NBR Crumbs is made from the ambient grinding of vulcanized nitrile rubber waste material. This is obtained from a variety of sources.

J. Allcock & Sons NBR Crumbs

J. Allcock & Sons

"J. Allcock &amp; Sons are a supplier, recycler and manufacturer of materials to the polymer industries. We import and export throughout the world, spanning North America, South America, Europe, Afric

J. Allcock & Sons - Rubber - Silicones - ISO 9001:2015 - Knowde

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J. Allcock & Sons Red 490 is a blue shade red iron oxide pigment.

Red 490 Technical Data Sheet

Red 490 Technical Data Sheet - J. Allcock & Sons

Red 490 Safety Data Sheet

Red 490 Safety Data Sheet - J. Allcock & Sons

J. Allcock & Sons Red 490 - 1309-37-1 - Inorganic Pigments

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	Value	Units	Test Method / Conditions
Mesh Retention (325)	0.1	%	—
Dispersion	4.0	%	QMT-10-102
Moisture	min. 0.4	%	QMT-10-105
pH Value	3 - 4.5	—	QMT-10-101
Water Soluble Salts	0.05	%	—

	Value	Units	Test Method / Conditions
Aluminum Oxide Content	0.01 - 0.1	%	XRF
Ferric Oxide Content	98.5 - 99.5	%	QMT-10-106
Iron Oxide Content	98.5 - 99.5	%	—
Silicon Dioxide Content	0.01 - 0.1	%	XRF

Typical Heavy Metal Analysis	Total, ppm	Soluble, ppm	Test Method
Lead	50	4	Total – Acid Digestion Followed by FAAS and Hydride AAS analysis. Soluble- BS 5665 Part 3, 1995 (EN71 Part 3, 1994)
Cadmium	5	1
Chromium	40	1
Arsenic	5	1
Antimony	5	5
Mercury	1	1
Barium	25	5
Selenium	max. 10	max. 10

J. Allcock & Sons Red 490

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