40 Shore A hardness, 1 to 1 mix Liquid Silicone Rubber (LSR) designed for liquid injection molding

Features & Benefits 

 Unique rheology 

 Improved flowability 

 Longer pot-life 

 Excellent process performance enables short cycle times 

 Food contact: Formulated to meet requirements of BfR XV recommendation and of FDA 21 CFR 177.2600  Drinking water: KTW and WRAS approved

Applications 

SILASTIC™ RBL-9200-40 Liquid Silicone Rubber is a translucent, general purpose LSR, formulated to give excellent process performance due to improved rheology and longer potlife. 

This product can be used in a wide range of applications, including but not limited to:

 General consumer goods articles 

 Food contact (e.g. cooking ware, valves, diaphragms) 

 Water approved applications (e.g. shower heads) 

 Grommets, gaskets  Infant care (e.g. baby nipples)

Typical Properties

Description 

SILASTIC™ RBL-9200-40 Liquid Silicone Rubber is a general purpose injection-molding elastomer. It belongs to the SILASTIC™ RBL-9200 Series, developed to be suitable for a wide range of typical silicone rubber applications.

How to Use 

Mixing and De-airing ：The A and B components are supplied strained and de-aired to be used as lot matched kits. Mix parts A and B in a 1:1 ratio. Meter mix equipment which pumps, meters and mixes the two components without incorporation of air is strongly recommended for production. If air bubbles are entrapped during mixing the mixture must be thoroughly de-gassed under vacuum. 

Pot Life ：When Parts A and B are mixed the mixture will remain useable for 72 hours at 25°C (77°F). 

Cleaning ：The uncured silicone can readily be removed by most hydrocarbon solvents. Polar solvents, such as ketones and alcohols are not suitable. 

Curing ：SILASTIC™ RBL-9200-40 Liquid Silicone Rubber cures readily at elevated temperatures. A 2 mm cross-section typically requires 6–10 seconds at 196°C (385°F). The cure time depends on the thickness and the cure temperature used. Cure can be inhibited by contact with certain materials such as amines, sulfur, and organotin complexes. 

Pigmentation ：This is normally carried out during mixing and dispensing of the two components. XIAMETER™ Color Master Batches are recommended with normal addition levels of 2 to 4% based on total volume.

Regulatory Compliance 

Food Contact ：SILASTIC RBL-9200-40 Liquid Silicone Rubber is formulated to meet BfR XV recommendation and FDA 21 CFR 177.2600. 

Drinking Water ：SILASTIC™ RBL-9200-40 Liquid Silicone Rubber is certified according to following KTW guidelines: 

 Sealings: cold water 23°C, warm water 60°C and hot water 85°C 

 Fittings: cold water 23°C and warm water 60°C

SILASTIC™ RBL-9200-40 Liquid Silicone Rubber is also approved by the WRAS – Water Regulations Advisory Scheme. 

Infant Care ：SILASTIC™ RBL-9200-40 Liquid Silicone Rubber has been assessed according to: 

 Commission Directive 93/11/EEC of March 15th, 1993 concerning the release of the Nnitrosamines and N-nitrosatable substances from elastomer or rubber teats and soothers 

 FDA guideline 7117.11 Volatile N-Nitrosamines in Rubber Baby Bottle Nipples – action levels 

 21 CFR 177.2600. U.S. Food and Drug Administration (FDA) regulation for rubber articles intended for repeated food contact 

 Bundesinstitut fuer Risikobewertung (BfR) Recommendation XV on silicone for food contact both Volatile Matter and Extraction Tests. 

It remains the customer’s responsibility to ensure Dow’s products are suitable for customer’s intended use and comply with all laws and regulations applicable to such use.