SDF205-ST High Temperature Sealing Tape
INFUSION CONSUMABLES

SDF205-ST High Temperature Sealing Tape

Up to 205°C Heat Resistance – Superior Sealant Performance for Vacuum Bagging and MoldingSDF205-ST is a high-temperature vacuum bag sealing tape developed specifically for demanding composite manufacturing processes such as vacuum infusion and autoclave curing, especially in the aerospace industry. With excellent adhesion and sealing performance, it withstands curing cycles up to 205°C without flowing or blistering, and can be removed cleanly from mold surfaces after processing.

Description and Application

Up to 205°C Heat Resistance – Superior Sealant Performance for Vacuum Bagging and Molding

SDF205-ST is a high-temperature vacuum bag sealing tape developed specifically for demanding composite manufacturing processes such as vacuum infusion and autoclave curing, especially in the aerospace industry. With excellent adhesion and sealing performance, it withstands curing cycles up to 205°C without flowing or blistering, and can be removed cleanly from mold surfaces after processing.

This cost-effective tape ensures air-tight sealing between vacuum bag films and mold flanges and is compatible with various bagging materials. Its reliable tack and ease of removal make it an ideal choice for both manual and automated layup procedures.


Applications

  • Vacuum bag and mold flange sealing

  • High-temperature vacuum infusion and curing

  • Aerospace and composite manufacturing requiring air-tight sealing


Packaging

  • Color: Yellow

  • Dimensions: 12 mm width × 3 mm thickness × 15 m length

  • Packing: 15 m/roll, 20 rolls/carton


Technical Specifications

PropertyRequirement / ValueStandard
AppearanceSmooth and uniform; no wrinkles or contaminantsHB 5481-91
Thickness3.0 ± 0.3 mmHB 5481-91
Width12.0 ± 0.6 mmHB 5481-91
Length15 + 0.5 mHB 5481-91
Heat Resistance120°C for 12h / 205°C for 3h – No cracking, flow, or blisteringHB 5481-91
CorrosionNo damage to mold surfaceHB 5481-91
Penetration (1/10 mm)60 ± 10 @ 20°C ± 2, 100g, 5sHB 5481-91
Shear Strength≥0.06 MPaHB 5481-91
Room Temp. Seal (0.098 MPa)Pressure drop ≤ 0.018 MPa within 5 minHB 5481-91
High Temp. Seal (205°C, 0.098 MPa)Pressure drop ≤ 0.027 MPa within 5 minHB 5481-91
Post-Curing RemovabilityEasily removable from mold after 205°C x 3hHB 5481-91

Storage & Handling

  • Store in a cool, dry place, away from direct sunlight, heat, and moisture

  • Do not stack more than 5 layers; vertical storage is strictly prohibited

  • Shelf life: 24 months from the date of shipment


Health & Safety

Follow the Product Data Sheet (PDS) and Safety Data Sheet (SDS) instructions during handling and application.


Notes

    • Ensure the mold surface is clean and free from dust, oil, water, and especially glass fiber residues.

    • Apply the tape in one continuous motion, and avoid repositioning once applied.

    • Press firmly by hand to ensure an airtight seal between the tape and the vacuum bag.

    • After removal, clean the mold surface before the next production cycle.

Updated on 02-04-2025 16:38:04

Technical Document

SDF205-ST High Temperature Sealing Tape
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