Bloom coating

Insoluble Sulfur. In natural mbber compounds, insoluble sulfur is used for adhesion to brass-coated wire, a necessary component in steel-belted radial tires. The adhesion of mbber to the brass-plated steel cord during vulcanization improves with high sulfur levels ( 3.5%). Ordinary rhombic sulfur blooms at this dose level. Crystals of sulfur on the surface to be bonded destroy building tack and lead to premature failure of the tire. Rubber mixtures containing insoluble sulfur must be kept cool (<100°C) or the amorphous polymeric form converts to rhombic crystals. 

Note Gratings should never be polished with the fingers or breathed on. This is also true of coated or bloomed gratings which have magnesium or hthium fluoride evaporated onto them. 

Haut,/. skin hide membrane film pellicle crust bloom. — durchaichtlge —, cornea. — harte —, sclerotic coat. 

The powder-producing collar contains a solid solution of the drug in the resin. Shortly after the collar is processed, the particles or molecules of the pesticide migrate from within the body of the resin and form a coating of particles, known as bloom, resembling a dust or powder on the collar surface. 

The paint industry uses P.R.175 primarily to color industrial paints and also automobile repair finishes. High transparency makes the pigment an important product for transparent and metallic effect finishes. The pigment is suited to twocoat metallic automobile (O.E.M.) finishes, also referred to as base coat/clear coat finishes, especially if the clear coat contains UV absorbants. Its lightfastness and weatherfastness are excellent. P.R.175 does not bloom, is completely fast to overpainting, and is heat stable up to 200°C. 

To get proper rubber to fabric adhesion the fabric must be quite dry and evenly coated with the adhesive and adequately dried up. Defective adhesion occurs due to contamination by surface blooming of ingredients. Sulphur blooms can be eliminated by the use of insoluble sulphur. Waxy softeners which bloom at the surface should be avoided in compounding formulations. 

BLOOM, In surface-coating technology, bloom is a whitish, filmy layer that appears on films of paints, varnishes, or lacquers due to contamination from the atmosphere. The term is also applied to a filmy layer deposited on a photographic plate by tap water, which can be removed by rubbing the plate with wet cotton. The term bloom is used in metallurgy to denote a mass of malleable iron from which the slag has been removed See also Iron Metals, Alloys, and Steels. 

Features Stout stems with wide spreading branches carrying alternately fleshy, heart-shaped leaves. The purple flowers bloom luxuriously in July and August, and the bristly burs or bracts adhere lightly to the clothes and coats of animals. The root is thick, brownish-grey externally, whitish inside. Roots and seeds have a sweetish, slimy taste, the leaves and stems being bitter. 

Research on blending milk fat and its fractions with cocoa butter to reduce costs and/or to improve stability against fat bloom in chocolates has had mixed results. Milk fat hard fractions have been reported to inhibit fat bloom formation in both milk and dark chocolates (Versteeg et al., 1994 Dimick et al., 1996b Bricknell and Hartel, 1998) but to accelerate fat bloom in compound coatings based on palm kernel oil (Ransom-Painter et al., 1997). Reddy et al. (1996) showed the importance of modifying the... 

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