Plaster acrylic

The medium is the binder which provides for the adhesion of pigments. The most important types are the temper media (glue, egg, and gum), the oils, and wax. In addition, for wall painting there is the tme fresco technique, where the pigments are laid down in a fresh, wet plaster preparation layer. Several other media have been used, but much less frequendy, eg, casein temper. In modem paints, a number of synthetic resins are used for this purpose. Contemporary artist paints are often based on acryhc polymers (see Acrylic ester polymers Paints). 

Rhenalkote . [Condea Chemie GmbH] AU resins, polyesters, or acrylates coating resins for paints, plasters, varnishes, adhesives, and sm ts. 

Poly(vinyl ester) dispersions are quantitatively more important than solid resins. Homopolymer and copolymer dispersions are used for binders in emulsion (dispersion) paints, plastic-bonded plasters, and water-thinnable adhesives. Poly(vinyl acetate) dispersions are less important than vinyl acetate copolymer dispersions. The most important comonomers of vinyl acetate are vinyl laurate, dibutyl maleate, Versatic Acid esters (VeoVa, Shell), ethylene, vinyl chloride, and butyl acrylate. Poly(vinyl propionate) and copolymers of vinyl propionate with butyl acrylate, styrene, or vinyl chloride are also marketed and used as dispersions. 

Styrene-acrylate copolymers are widely used as binders for interior-use paints, plasters, and exterior-use paints with a relatively high PVC. Water absorption and elasticity decrease with increasing styrene content. 

PCM are important, because they are latent heat storage materials suitable for the construction industry as low-energy alternatives to air-conditioning systems. Indeed, a material series made of wax entrapped into microcapsules of acrylic glass (Micronal) and integrated in conventional construction materials such as gypsum plaster is already commercialized by BASF. ... 

Chem. Descrip. Thermoplastic acrylic based on BA/MMA Uses Acrylic for plasters, cement modification, metal coatings, nonwovens Properties MFT 7 0 Tg 9 0 50% solids AcryGen BV 382 [OMNOVA Sol ns.j Chem. Descrip. Acrylic emulsion... 

Chem. Deserp. Aqueous dispersion of sttyrene/n-butylacrylate/acrylic acid/actylamide copolymer (50%), ammonia (< 5%), emulsifier Uses Film-fomier in paints, pasty building and tile adhesives, high-grade plastics-bound plasters, silicate paints primer for min. substrates Features Free from film-fomning aids, soivs., and plasticizers compat. with pigments and fillers... 

Chem. Descrip. Proprietary organic mineral oil-based blend Uses Defoamer for use with latex emulsions, waterborne architectural paints, plasters, adhesives (SBR, PVAc, acrylic, water-sol. resins), coating and latex printing defoamer in atmospheric dyeing, printing and textile finishing processes defoamer in food-contact paper coatings food pkg. adhesives... 

Uses Acrylic for hydraulically setting systems, syn. resin plasters, concrete coatings, emulsion paints... 

Uses Acrylic for mfg. of elastic top coats for crack-bridging paints, syn. resin plasters, coatings on aerated concrete and primers, and for washproof finishing, coating, and lamination of textiles and non-wovens Features Free from film-forming aids, soivs., and plasticizers Properties Whitish liq. ammonia odor dilutable in water dens. 1.05-... 

Chem. Descrip. Aq. polysiloxane resin emulsion Uses Hydrophobing agent, cobinder for silicone resin coatings and plasters, styrene-acrylic emulsion paints having silicate character (quartz paints)... 

Uses Intermediate for mfg. of polymers modifying comonomer in prep, of vinyl acetate- and acrylic-based polymer latexes and sol n. polymers for mfg. of low VOC interior and exterior emulsion paints and decorative plasters, crack-bridging systems, textiles, leather coatings, tie coats for polyolefins, adhesives... 

Plasdone C-15] Plasdone C-30, Plasdone K-25, Plasdone K-29/32, Plasdone K-90 Plasdone K-90D] Plasdone K-90M. See PVP Plasdone S-630. See PVP/VA copolymer Plasgrey . See Carbon black Plasmine KN-500. See Styrene/acrylic copolymer ammonium salt Plasmine N-750-P, Plasmine PLH-50] Plasmine PLH-55. See Rosin P/asfech . See Polypropylene Plaster of Paris. See Calcium sulfate hemihydrate Calcium sulfate Plasthall 8-10 TM-E. See n-Octyl, n-decyl trimellitate... 

Plaster, Waxes Concrete, Poly> Poty Epoxies Acrylics Low nelting... 

It appears that carboxyl-modification is necessary for bonding polymer latexes through amine-functional silanes. A series of experimental styrene-butadiene-acid terpolymers were compared as film formers and primers with 5% added Z-6020 (Table V). Difunctional acids gave the most stable mixes, but poorest water resistance. Polymers with acrylic acid modification were best primers for plaster. Alkylmaleate modified polymers had poor stability with silane, and deposited rubbery films with poor wet adhesion to glass. 

To achieve needed comfort, dentures must be custom-made. To form the customized denture, in which the artificial teeth are embedded, a wax pattern is used. The wax pattern is inserted in a plaster or dental stone in a split mold flask. After removal of the wax, the surface of the resulting mold cavity is painted with a separating medium, usually an aqueous alginate solution, followed by the addition of the acrylic resin. The separating medium aids in removal of the cured acrylic from the mold. 

For prototyping or for limited production runs, liquid plastics casting offers simplicity of process, relatively low investment in equipment, and fast results. T e casting materials may be thermoplastics, such as acrylics, or thermosetting plastics, such as epoxy resins. The plastics may harden by simple cooling, by evaporation of solvents, or by a polymerization or cross-liiiking reaction. Such plastics are often poured into open molds or cavities. Because pouring is done at atmospheric pressure, molds are simple, often made of soft metals, plaster, or other plastics. 

Enclosures that have been built from elements of autoclaved aerated concrete often are covered with plasters (45). Certain adhesion problems between plasters and surface exist during the mechanized covering of surfaces of the enclosures with the plaster. Some dispersible additives, such as a vinyl acetate polymer or derivatives of acrylic acid esters, are used to improve the adhesion. 

Breath-ability - the humidity resident in walls and plaster must be allowed to be released otherwise blistering will result. Acrylic based coatings can be formulated to be micro-porous. 

Uses Defeamer for waterborne disps., interior and exterior emulsion paints, large to f ne particle size disps, based on PVAc, PVC, acrylates and their copolymers, disp. adhesives and plasters, glues, polyvinyl alcohol sol ns., gloss plastics, high gloss paints... 

---