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Mould release prevents bonding and excessive build-up
MATERIALS
Cibu
Ferro introduces new frume retardant Pp
introduces
lrgublend udditive blends to Europe Ciba Specialty Chemicals is introducing Irgablend@ additive blends to the Eurpean plastics industry. The company says that this is in response to the industry’s demand for a long-term sustainable supply of blends containing base stabilizers and acid neutralizers. Irgablend products are mixtures of Ciba Irganox@ 1076, Irganox@ 1010, IrgafoP 168, stearates and/or hydrocalcites, containing at least 50% stabilizers. The company says that the blends will be produced in-line with its stabilizer pro-
A new product line of nonblooming, low specific gravity, V-O flame retardant, neat and reinforced compounds has been introduced by the Filled and Reinforced Plastics Division of Ferro Corporation. The flame retardant polypropylenes offer advanced technology to eliminate plate-out and productivity is improved when moulding aesthetic parts, as well as lower specific gravities. The halogen-based products meet a number of requirements, including the Underwriters Laboratories 94 V-O, California’s TB-133 furniture standard and the BellCore brushfire test. Ferro
duction and made available in either extruded or compacted forms. Bruno Salle, head of Ciba Polymer Additives Europe, adds: “The productivity and quality improvements gained in the polymer manufacturer’s facilities through Irgablend will by far exceed the 0.8 Euro/kilo premium above the charge for the individual blend components.” Contact: Ciba Special9 Chemicals Tel: +kI 61 6375618 Fax: +I1 61637 9288
says that it has certified its laboratories to perform UL’s oven aging to meet customer requests for future end uses. Ferro has also developed different grades to meet each market segment’s specific enduse needs. These grades include high impact, high gloss and high strength versions. The company adds that its flame-retardant polypropylenes offer low gravity and reinforced grades for most end uses. Relative thermal indexes above 105°C are now available. Contact: Ferro Corporation Tel: t I 216 6418580 Fax t I 216 696 6958
Mould releuse prevents bonding und excessive build-up Axe1 Plastics Research Laboratories has developed a semi-permanent mould release agent, XTEND W320 1, that is specially formulated for hi-nitrile butadiene rubber (HNBR) as a low friction, 87 durometer rating automotive seal that allows easy release from the mould with minimal flash residue. A fluoropolymer-based mould release was previously used by the seal producer, says Axel. The new release agent prevents bonding to the mould, as well as excessive build-up. Previously, the HNBR bonded tenaciously to the steel moulds and required four
steps to complete. These included spraying on a heavy coat of release, followed by
release was applied before continuing to mould the seals. As a result of the fluoropolymer release being applied heavily for each cycle, the moulds turned white from excessive release buildup, claims Axel. Using the new XTEND W-320 1, first one coat of release is sprayed on a clean mould and allowed to dry slightly. Then polishing is done with a soft cloth. After repeating this same procedure three to four times and allowing 1 O-l 5 minutes between application for drying and curing at 30°C the moulds are ready to go into production.
XTEND 3201 is speciallyformulatedfor automotive seak moulding one part that would stick. The mould was then wet sanded and more
Plastics Additives & Compounding December 2000 : 0
After a six-minute pressing cycle, the parts actually fall out of the mould and the flash residue is released by simply blowing it off. Axel’s senior technical customer support officer Glenn Pfister added: “Our custom XTEND formula offers a multiple, clean release and reduces labour and improves production for this automotive seal product line. In addition, the XTEND W320 1 release is credited with producing parts that have good consistent gloss rather than a spotty, dull finish.” Contact: Axe/ Phstics Research Laboratories Tel: tl 718 672 8300
Cibu
Ferro introduces new frume retardant Pp
introduces
lrgublend udditive blends to Europe Ciba Specialty Chemicals is introducing Irgablend@ additive blends to the Eurpean plastics industry. The company says that this is in response to the industry’s demand for a long-term sustainable supply of blends containing base stabilizers and acid neutralizers. Irgablend products are mixtures of Ciba Irganox@ 1076, Irganox@ 1010, IrgafoP 168, stearates and/or hydrocalcites, containing at least 50% stabilizers. The company says that the blends will be produced in-line with its stabilizer pro-
A new product line of nonblooming, low specific gravity, V-O flame retardant, neat and reinforced compounds has been introduced by the Filled and Reinforced Plastics Division of Ferro Corporation. The flame retardant polypropylenes offer advanced technology to eliminate plate-out and productivity is improved when moulding aesthetic parts, as well as lower specific gravities. The halogen-based products meet a number of requirements, including the Underwriters Laboratories 94 V-O, California’s TB-133 furniture standard and the BellCore brushfire test. Ferro
duction and made available in either extruded or compacted forms. Bruno Salle, head of Ciba Polymer Additives Europe, adds: “The productivity and quality improvements gained in the polymer manufacturer’s facilities through Irgablend will by far exceed the 0.8 Euro/kilo premium above the charge for the individual blend components.” Contact: Ciba Special9 Chemicals Tel: +kI 61 6375618 Fax: +I1 61637 9288
says that it has certified its laboratories to perform UL’s oven aging to meet customer requests for future end uses. Ferro has also developed different grades to meet each market segment’s specific enduse needs. These grades include high impact, high gloss and high strength versions. The company adds that its flame-retardant polypropylenes offer low gravity and reinforced grades for most end uses. Relative thermal indexes above 105°C are now available. Contact: Ferro Corporation Tel: t I 216 6418580 Fax t I 216 696 6958
Mould releuse prevents bonding und excessive build-up Axe1 Plastics Research Laboratories has developed a semi-permanent mould release agent, XTEND W320 1, that is specially formulated for hi-nitrile butadiene rubber (HNBR) as a low friction, 87 durometer rating automotive seal that allows easy release from the mould with minimal flash residue. A fluoropolymer-based mould release was previously used by the seal producer, says Axel. The new release agent prevents bonding to the mould, as well as excessive build-up. Previously, the HNBR bonded tenaciously to the steel moulds and required four
steps to complete. These included spraying on a heavy coat of release, followed by
release was applied before continuing to mould the seals. As a result of the fluoropolymer release being applied heavily for each cycle, the moulds turned white from excessive release buildup, claims Axel. Using the new XTEND W-320 1, first one coat of release is sprayed on a clean mould and allowed to dry slightly. Then polishing is done with a soft cloth. After repeating this same procedure three to four times and allowing 1 O-l 5 minutes between application for drying and curing at 30°C the moulds are ready to go into production.
XTEND 3201 is speciallyformulatedfor automotive seak moulding one part that would stick. The mould was then wet sanded and more
Plastics Additives & Compounding December 2000 : 0
After a six-minute pressing cycle, the parts actually fall out of the mould and the flash residue is released by simply blowing it off. Axel’s senior technical customer support officer Glenn Pfister added: “Our custom XTEND formula offers a multiple, clean release and reduces labour and improves production for this automotive seal product line. In addition, the XTEND W320 1 release is credited with producing parts that have good consistent gloss rather than a spotty, dull finish.” Contact: Axe/ Phstics Research Laboratories Tel: tl 718 672 8300