BYK RHEOBYK R 605 Liquid Rheology Additive

RHEOBYK -R 605

Liquid rheology additives for vinyl esters, epoxy resins, unsaturated polyesters Enhances the rheological performance of fumed silica in plastic applications such as resins and gel coats. Make fumed silica easier to incorporate, prevent delamination, increase or stabilize thixotropic behavior.

Chemical composition

Polyhydroxycarboxylic acid amide solution

Typical physical and chemical data

The data given on this data page are only typical values, not the technical indicators of the product.

Storage and Shipping

This product may separate or become cloudy. Disperse evenly before use. Product performance is not affected.

Application

Normal temperature curing resin system

Product features and advantages: RHEOBYK-R 605 is used for fumed silica or organic layered Silicates (organoclays) as rheology modifiers for unsaturated polyester resins, and as thixotropic synergists in epoxy and polyurethane systems. The additive enhances the thixotropy by strengthening the three-dimensional network structure of silica or layered silicates through additional bridging. Sufficiently high sagging resistance and improved leveling and defoaming are thus obtained even with lower amounts of silica or layered silicates.

A small amount of RHEOBYK-R605 (5% based on silica) stabilizes the Silica to prevent resin delamination during storage.

In vinyl ester resin, RHEOBYK-R 605 can activate hydrophilic fumed silica .

This additive can be used forIn a variety of resins, including polyether polyols, to prevent filler settling during storage.

In polyether polyols, RHEOBYK-R 605 can be used to stabilize molecular sieves such as zeolites.

Suggestions Dosage

Adjuvant dosage (purchase form) based on:

The above recommended dosage is for reference, and the optimal dosage needs to be determined through a series of experiments.

Adding method and processing Guidance

Under continuous stirring conditions, the additive should be in silica, layered silicate or Add to resin before filler is added. This additive can also be post-added.

Adhesives & Sealants

Product Features and Benefits: RHEOBYK-R605 is a contact with polyurethane and acrylate resin Thiotropic agents, rendered thixotropic through the use of fumed silica or organophyllosilicates (organoclays). Enhances the hydrogen bonding of silica and phyllosilicates, leading to increased thixotropy. Sufficiently high sagging resistance and improved leveling and defoaming are thus obtained even at lower silica or layer silicate dosages.

Recommended dosage

10-30% additive dosage (purchase form) based on fumed silica or organic layer shaped silicate.

The above recommended dosage is for reference, and the optimal dosage needs to be determined through a series of experiments.

Adding method and processing Guidance

Under continuous stirring conditions, the additive should be added in silica/phyllosilicate before adding to the resin. This additive can also be post-added.