The Art of Sarco Type M Glazing Putty: A Comprehensive Guide

Sarco type M glazing putty is a traditional material that has been used for centuries to install glass into windows. While it may not be as widely used today as some modern alternatives, it remains an essential tool for anyone restoring historic wood or steel windows. In this article, we'll delve into the world of Sarco type M glazing putty, exploring its history, application, and benefits.

The Traditional Application of Glazing Putty

Glazing putty is typically applied using a putty knife, and in the past, small amounts of white lead or asbestos were added to improve its elasticity and performance. The traditional recipe consisted of whiting (calcium carbonate) and linseed oil, with manufacturers adding different elements to achieve varying consistencies and effects.

The Rise and Fall of Glazing Putty

Glazing putty was once a staple in the construction industry, used extensively by painters and glaziers who would mix their own paints on site. However, as industrialization took hold, it began to fall out of favor in the 1950s and 1960s, replaced by proprietary glazing gaskets, caulks, and other options.

The Importance of Glazing Putty for Historic Restoration

For those restoring historic wood or steel windows, glazing putty is an essential tool. Unlike modern glazing systems, Sarco type M glazing putty offers a level of versatility and authenticity that can't be replicated. By using traditional methods and materials, restoration professionals can ensure that their work remains faithful to the original intent of the building.

In conclusion, Sarco type M glazing putty is a timeless material that has played a crucial role in the construction industry for centuries. While it may not be as widely used today, it remains an essential tool for anyone restoring historic windows. With its versatility, authenticity, and long history of use, Sarco type M glazing putty is an invaluable resource for any restoration professional or DIY enthusiast.

Sarco type m glazing putty