thickener&Ink oily coating additives

thickener It can have the very high thixotropy in the solvent paint, but the solvent type has decided its thixotropy energy

First, performance and application scope: DB- 2003 can have the very high thixotropy in the solvent paint, but the solvent type has decided its thixotropy energy. The solvent should mainly include 200 # petroleum benzin and the aromatic solvent, may in the certain degree bond some ester, the alkone and is mellow.DB - 2,003 suitable in does not have the solvent system, like the epoxy resin paint, models the sol, the caulking compound, the putty and the shaving knife padding changes the modifier. Its merit is can tolerate the quite high operating temperature, when the solvent mainly is 200 # petroleum benzin, this merit is especially obvious.DB- 2,003 has displayed the best temperature stability, for example air-drying alkyd resin paint. Then works as when the system solvent mainly is the aromatic hydrocarbon, its temperature stability has slightly reduces, like in take neoprene, polyethylene copolymer and chlorination polyethylene and so on as in foundation paint.Second, usage and amount used:The general amount used is 0.2 - 2.0%, according to end product paint computation. But the accurate quantity must the viscosity which needs with the paintThe always request determined. The fact proved that, the paint thixotropy can affect its fluidity, we need to enable it to achieve the balance.DB- 2,003 should better use in the high speed grinder, usually is should help the medicinal preparation by powdery to add to the solvent and in the parent metal mixture, the pre- disperser 5 minutes, then again join the pigment to grind approximately. Another method is prepares DB - 2,003 to stick in advance. In order to guarantee the thickening agent the appropriate disperser, should pay attention to the following item: (1) Must have the enough shearing force by to achieve the appropriate disperser; (2) Grinds has the certain temperature limit. Purely stirs cannot enable the system to achieve one, since joins by the pre- gelatin form also is so. The usual need sand blast or it melts similar grinds the method to complete, and causes the system disperser to be full.Third, basic request:When when the solvent mainly is in 200 # petroleum benzin paint uses this kind of thickening agent, the operating temperature is 50 - 60 , by now coordinated the certain shearing force, these paint alkyd resin paints will have the outstanding thixotropy in particular in these temperature limits. When operation the short time 80 - 90 cannot have the harmful influence.When includes the aromatic hydrocarbon solvent in the paint like neoprene uses DB - 2,003, the optimum temperature scope is slightly low, is 40 - 60 , the short time 80 high temperatures cannot have the harmful influence, these nature but change along with each kind of paint, the user should carry on the experiment by to determine the best application method. Although DB - 2,003 may by the pulverulence use, it also be possible to join by the pre- gelatin form. The use "the pre- gelatin" may achieve a better dispersible effect, but still needs to excel in cutting, at the same time follows the temperature the applicable scope.Correct pre- gelatin preparation method as follows: Weight DB - 2,003 and three weights xylene (or other fragrant solvents) the force stirs, until forms the high viscosity sticking. Again adds four weights the dimethyl, the force stirs the about 10 minutes, again passes through about 12 hour curings processes, transparent, one sticks then prepares successfully, it may maintain stably in longer time.

thickener&Ink oily coating additives