Description
Materia Use:
This is a two-component, low modulus, toughened epoxy paste adhesive used primarily for spall repair and bonding of flexible materials to rigid substrates. It is designed for application on horizontal, vertical, and overhead surfaces where resistance to freeze/thaw cycling, thermal changes, and mechanical shock is essential.
System Components:
· Part A: Epoxy resin (opaque amber)
· Part B: Hardener (opaque amber)
· Mix ratio is 2:1 by volume (100:43 by weight)
· No additional components such as primers or top coats are specified, and no thinning agents should be added.
Applications:
· Filling of spalls, cracks, gaps, and voids
· Bonding of flexible materials (e.g., rubber mats, neoprene pads, PVC sheets) to rigid materials (concrete, masonry, stone, steel)
· Suitable for both dry and damp substrates
· Adheres to overhead and vertical surfaces without sagging at thicknesses up to 1/4 inch
Application Details:
· Surface Preparation: Clean concrete surfaces per ASTM D4259 or ACI 503R; steel surfaces to white metal (SSPC SP 5)
· Mixing: Mix for 2–3 minutes using a Jiffy mixer at 350–750 rpm; premix components before use
· Installation: Use a trowel or caulking gun; apply with positive contact pressure; remove excess before setting
Special Notes:
· Temperature Limits: Minimum substrate temperature for installation and cure is 40°F (4°C)
· Pot Life (Gel Time): Approximately 30 minutes for a 200 g mass at 73°F
· Cure Time: Typical cure is achieved after 7 days at 73°F
· Thickness Limits: Non-sag up to 1/4 inch on vertical/overhead surfaces
· UV Stability: Not specified
· Coverage: Not specified in gallons per square foot; contact ChemCo for details
· Shelf Life: At least three years in original unopened containers stored at 60–90°F
· Chemical Resistance: Excellent against a range of chemicals, including automotive and aircraft fluids
Limitations:
· Not recommended for sustained high shear stress applications
· Should not be used as a rigid bonding agent in creep-prone situations
· Do not thin or modify with solvents
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