NEW FLAME & SMOKE DEFENSE SERIES PRODUCT ANNOUNCEMENT – FSD485

Marshall Additive Technologies is proud to introduce into the Flame & Smoke Defense product line – FSD485. FSD485 is an antimony free proprietary inorganic blend flame retardant synergist for use with halogen based flame retardant compounds, where Zinc Stannate is used as the primary synergist. It allows the formulator to reduce the amount of the …

New Smoke Defense Series Product Announcement – SDZAM

Marshall Additive Technologies is proud to introduce into the Smoke Defense product line – SDZAM. SDZAM is a reactive smoke suppressant blend that has been specifically formulated to provide a more cost effective alternative to Zinc Molybdate coated Talc (ZMT) products in the market for application in PVC compounds. Our experimental work has shown that …

New Flame & Smoke Defense Series Product Announcement – FSD479

Marshall Additive Technologies is proud to introduce into the Flame & Smoke Defense product line – FSD479. FSD479 is an antimony free proprietary inorganic blend flame retardant synergist for use with halogen based flame retardant polymer compounds where Zinc Hydroxy Stannate is used as the primary synergist. It allows the formulator to reduce the amount …

New Flame Defense Series Product Announcement – FD440

Marshall Additive Technologies is proud to introduce into the Flame Defense product line – FD440. FD440 is an antimony free inorganic synergist for halogenated flame retardant systems. FD440 can allow the formulator to significantly reduce the antimony trioxide level in a formula while providing equivalent performance at a reduced cost. This product is applicable to …

ARP Materials – Exclusive United States Distribution

      Marshall Additives Technologies (MAT), a division of the R.J. Marshall Company, is pleased to announce ARP Materials as exclusive United States distribution partner. Sept. 30th, 2019 Marshall Additives Technologies, a premier supplier of highly effective flame retardant and smoke suppressant additives for polymers, is proud to announce ARP Materials as exclusive United …

Synergism of Flame Retardants

Polychloroprene contains about 40% chlorine in a thermally stable backbone structure. It has a long history of use for applications requiring flame retardancy, such as conveyor belts, mass transit vehicle interiors, electrical insulation and jackets. A book was published by DuPont in 1963 on Neoprene. Typically, the formulation will contain 5-15 phr antimony trioxide, 5-15 …

RJM welcomes David Roberts

It is our pleasure to announce that David Roberts will join us as Technical Director of The R.J. Marshall Company effective January 1, 2019. He will be working between his home office in Sheboygan Falls, Wisconsin and our headquarters in Southfield. David will be managing all day to day technical activities, new product development, technical sales …

ATH and MDH in elastomers

Elastomers can tolerate ATH or MDH loadings of 60% or somewhat higher without loss of useful properties although hardness is obviously increased. ATH is substantially less costly but limits processing temperatures to below about 200–220 °C. A combination of roughly equal amounts of ATH and MDH will often be found more effective in flame retardancy than …

Rubber Flame Retardancy

Two classic approaches to flame retardancy of rubber are the incorporation of a halogen-antimony system and of a water-generating heat-sink additive such as ATH or MDH. Often, these two systems are used together. A “standard package” may be 15–20 phr of chloroparaffin (70% Cl, a solid chloroparaffin). An improved package to pass a more stringent …

Antimony Trioxide – Did you know?

Antimony trioxide is rated as R40 in the EU (limited evidence of a carcinogenic effect). The US EPA has not given it a carcinogenicity classification. It seems to have little ecotoxicological problem but in some jurisdictions it qualifies as a “heavy metal.” As a synergist for halogenated flame retardants, it is difficult to find alternatives, …