Crosslinkers and additives for silicone sealants

Transcription

1 Crosslinkers and additives for silicone sealants

2 Crosslinkers and additives for RTV-1 silicone sealants Competence and experience: the twin pillars of success The modern world would be unthinkable without siliconebased sealants. The spectrum of applications for RTV-1 silicone sealants is vast, ranging from sanitary, construction and structural glazing to household appliances and automotive technology. Nitrochemie GmbH has been developing and producing crosslinkers and adhesion promoters for the sealant industry for over forty years, supplying world markets with a successful range of innovative products. By investing in future-oriented technologies and state-ofthe-art production capacity, Nitrochemie already numbers among the world s leading companies in all of its product areas. Intensive cooperation with customers, market-driven research and closely interlinked sales, development and production structures make Nitrochemie a competent global partner. Depending on the application profile, many of a sealant s characteristics can be adjusted by selecting the crosslink system: Adhesion properties Corrosion resistance on metallic surfaces UV stability Odour Crosslinking and hardening speed Elasticity (tensile strength) Resistance to water, oil and solvents Heat and flame resistance 2

3 Products Nitrochemie s range of silane products encompasses neutral and acidic crosslinking systems as well as adhesion promoters and catalysts. Nitrochemie develops and produces innovative neutral, low-odour crosslinking systems that contain little or no MEKO. The use of these crosslinking systems in RTV-1 silicone sealants results in a stable, free MEKO content of less than 1% in the cartridge. The innovative liquid acetate crosslinker makes it possible to develop high quality and competitive sealants by reducing the silica content during compounding. The product range includes Neutral crosslinkers Novel, oxime-free crosslinkers MEKO-free oxime-type crosslinkers Low-MEKO oxime-type crosslinkers MEKO containing crosslinkers Amide crosslinkers Acidic crosslinkers Innovative, fluid methyl substituted acetate crosslinkers Adhesion promoters Catalysts Environmental protection and quality assurance In developing and manufacturing our products we place great emphasis on conserving resources, saving energy and extensive recycling. Quality assurance and protecting the environment are among our top priorities. The Nitrochemie Group s quality management system is certified in accordance with ISO 9001:2000, while our environmental protection management system meets the requirements of ISO 14001:

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5 Innovation and technical service Customer service State-of-the-art research and analytical laboratories aid Nitrochemie in developing innovative new products. Coupled with our extensive experience in formulating silicone sealants, Nitrochemie s special application technology sealant laboratory guarantees reliable functioning and a steady flow of product improvements. Being close to our customers gives us a critical edge. Our customers can count on us for outstanding technical and logistical support. Development and optimization of customer-specific recipes Customized solutions for special applications Testing of sealants in accordance with standard norms and testing methods Technical support on Site Chemical and physical analytics Determining the free MEKO content of sealants 300 Tensile strength in N This includes: Elongation in mm 30 Tensile strength in accordance with DIN EN ISO 8339 Properties of oxime containing, transparent silicone sealants Crosslinkers DIN EN ISO 8339 MEKO-free Low-MEKO MEKO containing oxime-type crosslinkers pleasant pleasant, slightly oxime-like MEKO > 6 weeks > 6 weeks > 6 weeks > 18 months > 18 months > 18 months Secant modulus N/mm Elongation at break (%) Tensile strength N/mm Elongation at break (%) < 0.8 (after being stored 1.7 Skin-formation time (min) Odour Storability 60 C Room temperature EN ISO 8339 DIN (Tensile dumbbell test) MEKO content (%) over 12 months) 5

6 M002e11.07 Rheinmetall Nitrochemie Aschau GmbH Liebigstrasse Aschau am Inn Germany Phone Fax Member of Industrieverband Dichtstoffe e.v. Nitrochemie is jointly owned by Rheinmetall AG of Düsseldorf, Germany and RUAG Holding of Bern, Switzerland.