CRL Gray Metal Sash Putty 1 Gal — Window Glazing Compound

• Use for Steel, Aluminum, or Galvanized Window Sash
• Apply Smoothly without Priming

CRL Metal Sash Putty (SKU 528GL) — formulated for glazing steel, aluminum, and galvanized window sash. This gray metal-sash putty applies smoothly without priming, blends with metal finishes, and is ideal for re-glazing and window repair projects.

Application & Preparation
Surfaces must be clean, dry, and frost-free. For re-glazing, remove all old putty and bedding. If needed, warm putty by rolling it in your hands to soften. Apply and smooth to an angle that sheds water. Typical dry time before painting is 4–6 weeks depending on temperature and humidity. Putty must be painted after it has skinned over and reached a firm set; use a high-quality oil-based paint for best results.

Mixing Instructions
Mix the ENTIRE contents of the container prior to use. Empty the full container onto glass or plastic and work the oils into the putty until uniform. DO NOT mix small batches or mix on cardboard (cardboard absorbs oils). Do not thin, add solvents, oils, or pigments—putty cannot be tinted.

Technical Data
Meets Federal Specification TT-G-410E; ASTM C669-75, C669, D2249, D2376, C797.

Product Warning
Do not thin putty. Do not add solvents, oils, or color pigments.

Storage
Best-by shelf life: 6–8 months if properly stored in a sealed container.

Need help choosing the right glazing putty for metal window sash? Contact CRL or add SKU 528GL to your cart to get started.