^{3M Polyester Tape 聚酯膠帶 8403 Silicone Adhesive}

^{3M 聚酯膠帶 8403}

3M Polyester Tape 8403 has a silicone adhesive for composite bonding and splicing of many silicone coated papers and films.

• Polyester film that retains flexibility and thermal resistance and is abrasion, chemical and thermal resistant to help reduce failures due to cracking and backing deterioration.
• Silicone adhesive for higher heat resistance than many other adhesives to help reduce failure due to softening, oozing and adhesive transfer.

• Masking edges overlap seams in metal bonding process where the excess epoxy (“flash”) flows onto the tape. Clean-up is complete when the tape is removed. • Protective overall mask on panels to mild caustic or acid bath etching. Helps prevent scratches during handling and provides desired masking during metal bonding and fabrication. • Holding of parts or vacuum bags during bonding process. • Mask for metal in acid or caustic chemical milling baths. • Masking parts in anodizing processes. • Splicing of silicone coated papers and films. • Paint masking of materials subjected to high temperatures.

Backing: Polyester film

Adhesive: Silicone
Color: Translucent green
Lenght:72 yds. (66 m)

Adhesion to Steel: 27 oz./in. width (29 N/100 mm)
Tensile Strength at Break: 46 lbs./in. width (806 N/100 mm)
Elongation at Break: 150%
Backing Thickness: 1.4 mils (0.04 mm)
Total Tape Thickness: 2.4 mils (0.06 mm)
Temperature Use Range: Removes cleanly and remains flexible after 3 hours, 350°F (177°C), in autoclave

#8403 半透明綠色   耐溫到177°C(3小時),  用途是高溫塗裝遮蔽保護 長66M.

特性：綠色 PET 薄膜背層，矽膠接著劑。耐溫範圍極廣。
用途：陽極氧化處理、高溫塗裝保護、拼接。
重點：注重「不殘膠」地從特殊表面移除，且抗化學品侵蝕。

8403為綠色、較厚（具高耐磨性），適用於陽極處理等嚴苛環境