10 Best Window Glazing Putty in 2026

A 1-gallon tub of DAP 33 Window Glazing Compound is ready to use for face glazing wood, metal, and aluminum sash. It forms an airtight, watertight seal that protects from the elements, and it resists sagging, shrinking, and cracking while staying flexible during minor expansion and contraction. For anyone reglazing multiple windows or large sash jobs, this is a straightforward material that works on interior and exterior applications.

A latex formula that cleans up with water means you can wipe mistakes off your hands and tools without solvents, which is a genuine convenience for anyone working indoors or around kids and pets. This compound resists sagging, shrinking, and cracking while staying flexible during minor expansion and contraction, so the seal holds up as the window frame moves with temperature changes. It sets within 3 to 7 days depending on temperature, humidity, and fill volume, which makes it a good fit for homeowners and DIYers who don’t need the job finished in a single afternoon.

The trade-off is that slow cure time: if you need a window sealed and painted the same day, a faster-drying oil-based putty might be a better fit. But for a job where easy cleanup and a tight, paintable seal matter most, this latex compound delivers exactly what the label promises.

The Red Devil 0662 is formulated to stay flexible after application, which means it moves with the window frame through seasonal expansion and contraction without cracking. That flexibility, combined with excellent adhesion to both wood and metal sashes, makes this a strong pick for mixed-material window repairs. It also resists shrinking and sagging, so you can apply it confidently and expect a clean, lasting seal. Anyone who wants a reliable, ready-to-use compound without the hassle of mixing will appreciate the convenience.

The half-pint container holds just enough for a single window or small touch-ups, so if you’re tackling multiple windows in an older home you’ll need to buy several units or look for a larger tub. The pre-mixed formula is ready to use straight from the jar, so you can start applying it without any mixing step. For quick repairs where flexibility and adhesion are key, this compound does exactly what it promises.

A waterproof seal is the single most important feature for any window glazing putty, and the Red Devil 0666 delivers exactly that. This compound forms a durable watertight barrier that keeps moisture out, which means fewer cracked panes and rotting sashes over time. It stays flexible after curing, so seasonal expansion and contraction won’t cause it to crack or pull away from the glass. You can paint over it with any latex or oil-based paint, making it easy to match your trim. For anyone who needs a reliable exterior seal that holds up against rain and snow, this is the putty to reach for.

If you are tackling a single window repair or a small project and want a waterproof seal without the messy solvent cleanup, this Red Devil compound is a smart, straightforward choice.

A full gallon of putty covers 336 linear feet, which means you can reglaze a whole house of historic windows without running back to the store for more. This is a complete kit, two putty knives (one flexible, one stiff), glazing points, whiting powder, and a window opener, so you have everything in one box. It suits restorers who work in a shop environment, where you can remove the sash, apply Type M, and let it cure faster than the Dual Glaze variant. The skin forms in 2-7 days, and once it does, you can paint with either oil or acrylic.

Sarco Type M is designed for interior site work, meaning you need to remove the window and restore it in your shop rather than glazing it in place. For anyone tackling a full historic restoration with the sash pulled, this kit bundles the putty, whiting powder, glazing points, window opener, and two putty knives into one set, saving time and guesswork.

Eighty-four linear feet of coverage from a single quart means this Sarco Type M putty is sized for focused projects. Reglazing a few sash windows or patching a storm door won’t leave you with a half-full gallon tub hardening in the shed. The container measures 5 by 5 by 4.5 inches, so it fits in a standard toolbox or on a shelf, and at four pounds it stays manageable for an afternoon’s work. For someone doing a couple of windows, this quart matches the job without excess.

If you need to glaze many windows at once, the quart will run out sooner than a larger container would. Sarco also offers a Dual Glaze gallon, and DAP’s 33 Glazing Compound comes in a gallon tub, both of which provide more material for extensive projects. But for a specific repair where you want a fresh batch of putty, this size avoids waste and keeps the material from hardening before you use it all.

A full gallon covering 336 linear feet means this putty can handle a whole house of windows without needing a second tub. Sarco calls it the most versatile glazing putty on the market, and that gallon size suits someone tackling multiple sashes or a full restoration. It’s a practical choice if you want one product that works across different window styles, from old wood frames to modern dual-pane setups, without swapping compounds mid-project.

At 19 pounds, that gallon tub is a heavy lift, especially if you’re working up on a ladder or moving it around a job site. Compared to DAP 33 Window Glazing Compound, which comes in a similar gallon tub, Sarco’s heft makes it less portable for quick touch-ups. Stick with this if you’re doing a full set of windows and don’t mind the bulk; for small repairs, a quart or tube might save your back.

A full gallon of Dual Glaze putty covers 336 linear feet, enough to reglaze a whole house of historic windows without running back to the store mid-project. This kit bundles the putty, whiting powder, glazing points, a window opener, and two putty knives (a 1.5-inch flex and a 1.25-inch stiff). It is designed for exterior site work, meaning you apply it with the window still in place. For anyone restoring old wood or metal sash windows, this is the most complete starting point available, saving you the hassle of hunting down each tool separately.

Dual Glaze dries slower than Sarco’s own Type M formula, so you will wait longer before painting. The putty is designed to cure alongside the environmental conditions, which makes it suitable for exterior site work. If you need a quick turnaround on a rental or a tight schedule, the Type M set might suit you better. But this kit includes a gallon of putty that works on both wood and metal, plus whiting powder, glazing points, a window opener, and two putty knives.

A gallon of putty that handles both wood and metal sash means you can grab one tub for nearly any window glazing job around the house or on a work site. Sarco Dual Glaze is built for versatility: it meets the needs of glaziers, painters, and homeowners alike, and it forms a watertight bond that keeps moisture out. That dual-surface compatibility makes it a natural fit for anyone who works on a mix of old wood windows and newer metal frames without wanting to stock two different compounds.

The gallon tub itself takes up shelf space at 8 inches cubed and is heavier than the pint or quart options you might grab for a single broken pane. If you mostly patch one or two windows a year, a smaller tub from another brand might be a more practical size. But if you have multiple windows to restore or you work on both wood and metal sash regularly, this one tub covers both surfaces with a single reliable product.

This gallon of CRL 500GL comes in a 6-inch cube container that weighs one pound, making it light enough to carry up a ladder. Its formulation is designed for face glazing of wood sash, and it goes on smooth and evenly, which helps when applying putty to window frames. The product is specifically for wood sash, so it is not intended for other materials.

Because this putty is made for wood sash only, it may not suit repairs on other frame types. The off-white color is as described in the product name. For those working on wood sash windows who need a putty that applies smoothly, this gallon tub fits that purpose.