Altri-SP-879S胶衣树脂专用分散剂

altri-sp-879s胶衣树脂专用分散剂

wettingand dispersing additive for ambient-curing plastic systems andsolvent-borne coatings to achieve pigment stabilization and toreduce fl ooding/fl oating. contains silicone.

productdata

composition

solution of a lowmolecular weight, unsaturated acidic polycarboxylic acid polyesterwith a polysiloxane copolymer

typicalproperties

the values indicatedin this data sheet describe typical properties and do notconstitute specifi cation limits.

acidvalue:                  110 mg koh/g

density (20 °c):               0.95g/ml

non-volatile matter(10 min., 150 °c): 52 %

solvents:                    alkylbenzenes

flash point:                  48°c

storage andtransportation

separation orturbidity may occur during storage and transportation. mix wellbefore use. warm to 30-60 °c and mix well.

specialnote

white spirit-basedcoating systems or those that are diluted with white spirit have alimited compatibility.

applications

ambient-curingplastic systems

specialfeatures and benefits

altri-sp-879s improvesthe dispersion of all conventional fi llers, such as calciumcarbonate and aluminum hydroxide. it reduces the viscosity of thefilled resin, which enables an increased fi ller content. in themajority of cases, the settling of the fi ller is significantlyreduced during storage and when processing. altri-sp-879s is suitedto stabilizing pigments in gel coats. the additive also contains asmall of a polysiloxane copolymer to reduce fl ooding andfloating. this prevents the formation of bénard cells and improvesthe surface slip and leveling

recommendedlevels

0.5-1.5 % additive (assupplied) based upon the fi ller.

the above recommendedlevels can be used for orientation. optimal levels are determinedthrough a series of laboratory tests.

coatingsindustry

special features andbenefits

the additive providesa targeted, controlled fl occultation of the pigments. the systembuilds bridges between the individual pigment particles, therebycreating three-dimensional networks. this controlled

fl occultation of thepigments primarily prevents fl ooding/fl oating along with settlingand sagging. altri-sp-879s is suited to stabilizing pigments inindustrial coatings and architectural coatings. it increases gloss,prevents fl oating and reduces the millbase viscosity. the additivealso contains a small of a polysiloxane copolymer toreduce flooding and fl oating. this prevents the formation ofbénard cells and improves the surface slip and leveling, and alsothe orientation of matting agents and aluminum pigments.

in the majority ofcases, it is no longer necessary to add the silicone additiveswhich are usually re

recommendedlevels

amount of additive (assupplied) based upon pigment:

inorganicpigments:  3-10 %

titaniumdioxides:       1-3 %

organicpigments:       8-16 %

the above recommendedlevels can be used for orientation. optimal levels are determinedthrough a series of laboratory tests.