供应杜邦铁氟龙涂层加工润滑

邦铁氟龙856-204涂层的详细描述：
    Fact Sheet
 The DuPont Oval Logo, DuPont?, and Teflon? are trademarks or
 registered trademarks of E.I. du Pont de Nemours and Company.
 Use of DuPont trademarks subject to License Agreement and
 qualification.
 Description
 Teflon? FEP topcoats provide nonstick, chemical and
 corrosion resistance. Because FEP can melt-flow to
 form nonporous film, it is a natural choice for release
 applications with low abrasion such as molds and
 bakeware.
 The 856-line of Teflon? topcoats must be used with a
 Teflon? industrial coatings primer. Examples:
 FDA Conforming Not FDA
 Primers Conforming Primers
 858-100 851-204
 959-200 series 850-300 series
 959-405 958-200 series
 FDA Status
 The 856-200 Teflon? topcoat complies with FDA regulations
 in 21CFR governing components of coatings
 for direct food contact when applied according to fact
 sheet instructions. Primers must also comply for the
 system to be FDA conforming. Note: 856-204 and
 856-211 Teflon? topcoats do not comply with FDA
 regulations in 21CFR.
 Table 1
 Typical Properties
 856-200 856-204 856-211
 Color Clear Green Gray
 % Weight Solids 44.9 44.1 46.3
 % Volume Solids 26.4 24.4 24.3
 Coverage, ft2/gal* 423 391 453
 (m2/l)* 10.4 9.7 11.1
 Viscosity, cP 20–400 50–300 20–300
 Maximum use
 temperature, °C (°F) 204 (400)
 * Theoretical coverage at 25 μm (1 mil) assuming **
 spray efficiency.
 These figures are averages and may vary.
 856-200, 856-204, and 856-211
 DuPont? Teflon ? 856-Line FEP Topcoats
 Application
 Bring coating to room temperature. Roll or agitate
 gently but thoroughly until contents are homogeneous.
 Do not use a lightening mixer or similar type of mixer.
 Strain through 100-mesh stainless steel screen.
 See “Applying Teflon? Coatings” fact sheet.
 Surface Preparation
 Apply primer over clean and roughened surface and
 apply as directed on primer fact sheet. Bake or force
 dry per directions in appropriate primer fact sheet.
 Film Thickness
 Apply 856-2XX coatings at a total DFT of 15-25 μm
 (0.6-1.0 mil) with a primer thickness of approximately
 7 μm (0.3 mil). Flash dry to prevent popping or cracking
 during the bake.
 Bake
 All temperatures refer to metal temperature. For end
 uses where low porosity is essential, multiple topcoats
 are required using the higher temperature bakes.
 Primer
 See specific fact sheets for primers.
 Single top coat
 The first topcoat must be sufficiently baked to cure the
 primer. For example:
 Bake If Using Primer
 5 min. at 400°C (750°F) or 850-3XX line;
 10 min. at 370°C (700°F) 851-204; 858-100
 60 min. at 300°C (575°F) or 958-2XX line; 959-line
 5 min. at 370°C (700°F)*