首页 喷涂加工 美国科慕958-303处理

美国科慕958-303处理

发布时间 2022-06-13 收藏 分享
价格 面议
品牌 比尔安达
区域 全国
来源 平湖比尔安达新材料科技有限公司

详情描述:

Description

Teflon S 958-303 and Teflon S 958-313 are onecoat,

solvent-based coatings specially formulated to

provide a tough, durable film for dry lubrication,

with excellent salt spray resistance. In addition,

Teflon S 958-313 has exceptionally good abrasion

resistance. They can be cured at temperatures as

low as 177?C (350?F). Refer to Table 1 for physical

property data.

FDA Status

Teflon S 958-303 and Teflon S 958-313 do not

comply with FDA regulations governing components

of coatings for direct food contact.

Table 1

Typical Properties

Teflon S Resin-Bonded Lubricant

Code 958-303 958-313

Color Black Black

Weight Solids, % 26.3 24.2

Volume Solids, % 19.4 18.0

Density, kg/L (lb/gal) 1.04 (8.7) 1.04 (8.6)

Coverage, m2/L (ft2/gal)* 7.8 (311) 7.2 (289)

Viscosity, cP 200–800 200–800

Maximum Use

Temperature**, ?C (?F) 260 (500) 260 (500)

Note: These figures are averages and may vary.

* Theoretical coverage at 25 μm (1 mil) assuming 100%

efficiency.

** Abrasion resistance is reduced at temperatures above 205?C

(400?F).

Surface Preparation

For aluminum, stainless steel, and carbon steel:

1. Clean (vapor degrease, prebake, or other).

2. Lightly grit-blast with aluminum oxide.

For carbon steel, a zinc or manganese phosphate

conversion coating should be applied after grit-blast.

These products also adhere well to most hard anodized

aluminum surfaces.

Application

1. Bring coating to room temperature. Shake or

agitate to reincorporate any settled material.

2. Product is supplied ready-to-spray. If thinning

is desired, add a small amount of TN-8718

(n-methyl pyrrolidone NMP) with steady

mixing. If faster evaporation is needed use

TN-8595 or a 50:50 mixture of NMP:MIBK

with care. This thinner must be added slowly

with constant stirring.

3. Use conventional industrial spray equipment.

4. Recommended film thickness is 15–20 μm

(0.6–0.8 mil). The heavier film build will

improve salt spray corrosion resistance.

Baking

Note: All temperatures refer to metal temperature.

1. Flash or force dry for 5 min.

2. Recommended bake for 15 min at 343?C

(650?F).

These products can be cured at temperatures

as low as 177?C (350?F) by extending the cure

time. However, the toughness and durability of

the coating decreases as the cure temperature

is reduced below 343?C (650?F).

The color will change at the higher bakes to

a brown cast, but performance will not be

affected.

Fact Sheet

Teflon  S Coatings

958-303 and 958-313

DuPont? Teflon

Industrial Coatings

The DuPont Oval Logo, The miracles of science, and Teflon are

trademarks or registered trademarks of E.I. du Pont de Nemours and

Company.

Use of DuPont trademarks is subject to License Agreement and qualification.

Storage and Stability

Teflon S 958-303 is stable for at least 18 months

when stored at normal room temperature of

18–24?C (65–75?F).

Teflon S 958-313 is stable for at least 12 months

when stored at normal room temperature of

18–24?C (65–75?F).

Safety

Follow normal industrial safety practices for handling

and applying Teflon products. Industrial

experience has clearly shown Teflon materials can

be processed and used at elevated temperatures

without hazard providing adequate ventilation is

used. Ventilation should be available at baking temperatures

275?C (525?F) and above. Before using

Teflon S, read the Material Safety Data Sheet

(MSDS) and the detailed information in the “Guide

to the Safe Handling of Fluoropolymer Resins,”

latest edition, published by the Fluoro-polymers

Division of The Society of the Plastics Industry.

When grit-blasting Teflon finishes off aluminum

or magnesium surfaces, the possibility of explosion

exists if the fines are allowed to become heated.

Good housekeeping practices, keeping the residue

wet, and keeping the ventilation and dust collection

systems in good working order reduces this risk.

Table 2

Typical Test Data

Value Value

TeflonS 958-303 Teflon S 958-313

Test Method (Black) (Black)

Dry Film Thickness (DFT) Electromagnetic method ASTM D1400-87 25 μm (1 mil) 25 μm (1 mil)

Film Appearance Eye and power magnification microscope OK OK

Adhesion

Post Water Cross-

Hatch Adhesion Adhesive tape after boiling ASTM D335 OK(A) OK(A)

Impact ASTM D4145 OK(A) OK(A)

Abrasion

T


联系人 郁水峰
021,61486660, 15257388109 2207155052
billanda2005@163.com
上一条 下一条
电话联系