This technical data sheet details 3M™ Scotch‑Weld™ Epoxy Adhesive 2214 Hi‑Temp New Formula, a 100 % solids, aluminum‑filled, deaerated epoxy paste designed for high‑temperature structural bonding of metals and high‑temperature plastics. The document provides typical uncured, mixed, and cured physical properties (color, viscosity, density, Shore D hardness, cure time), performance characteristics (overlap shear strength, T‑peel adhesion, elongation at break), and thermal/electrical parameters (coefficient of thermal expansion, thermal conductivity). Comprehensive surface‑preparation procedures are listed for steel, aluminum, plastics, rubbers, and glass, followed by step‑by‑step application directions, safety cautions, and recommended equipment specifications for various extrusion setups (pump ratios, hose pressures, flow‑gun outputs). Storage and shelf‑life guidance, handling precautions, automotive disclaimer, warranty, liability limits, and ISO‑9001 quality statement conclude the sheet. The content is intended for trained industrial/occupational users and application engineers.
Topics
Product Overview: Hi‑Temp New Formula Epoxy Adhesive
Introduces the 3M Scotch‑Weld 2214 Hi‑Temp New Formula, its composition (aluminum‑filled, deaerated), curing temperature, and target substrates.
Physical Property Data: Uncured, Mixed, and Cured States
Tables of typical uncured viscosity, density, color; mixed cure time at 121 °C; cured color and Shore D hardness.
Performance Metrics: Shear, T‑Peel, and Elongation
Quantitative results for overlap shear strength on cold‑rolled steel, T‑peel adhesion on aluminum and steel, and elongation at break.
Thermal and Electrical Characteristics
Coefficient of thermal expansion and thermal conductivity values relevant to high‑temperature applications.
Surface Preparation Protocols per Substrate
Step‑by‑step cleaning, abrasion, degreasing, and etching procedures for steel, aluminum, plastics, rubbers, and glass, including chemical formulations.
Application Procedure and Safety Cautions
Detailed directions for handling, mixing, applying, curing, pressure maintenance, and safety warnings (exothermic risk, PPE, solvent use).
Dispensing and Extrusion Equipment Specifications
Recommended pump ratios, hose pressures, flow‑gun configurations, and output tables for regular, non‑metallic, Hi‑Temp, and Hi‑Dense formulations.
Storage, Shelf Life, and Temperature Sensitivity
Guidelines for storage temperature, shelf‑life limits (12 months at 4 °C, 18 months at –20 °C), and heat‑sensitivity warnings.