Updating Shopping Cart

Slow Size Information & Instructions


Gold Leaf Slow Set Size

Slow Set Size is an oil-base gilding adhesive.  It has an approximately 12 hour set time, and about 10-12 hours where leaf can be applied.


Usage Overview

1.  Preparing the item to be gilded is the key to a good gilding job.  The surfaces must be clean and free of oils, wax, fingerprints and dust.  After a good primer is applied to the item to be gilded, it should be sanded and made smooth, filling in any porous areas.  Make sure that the primer is compatible with the substrate.

2.  Slow Set Gilding Size can be applied with a brush, roller or by spraying.  After about 12 hours, the size will be set.  Set time will vary depending on temperature, humidity and thickness of the application.  A good test to see if the leaf can be laid is to run a clean dry finger across the surface of the size.  If it squeaks, you can apply the leaf.  If it feels tacky or wet, it is not ready.

3.  Once the size has set, leaf can be applied for approximately 10-12 hours.

4.  If a faster set time is needed, Slow Set Size and Quick Dry Size can be mixed in a 1:1 ratio resulting in a tack time of about 3 hours, allowing approximately 3 hours to apply the leaf.

5.  It is strongly recommended to apply the size in a thin coat.  Some professional gilders will use a foam roller to remove most of the size after it has been brushed on.


Miscellaneous Information

A.  Coverage is about 700 square feet per gallon, 175 square feet for a quart, 90 square feet per pint, 45 square feet per half-pint, and 20 square feet for a quarter pint.
B.  Clean up wet size with mineral spirits, or lacquer thinner for dried material.
C.  If the size looses its tack, apply new size over the old size.
D.  We highly recommend a time test before you start your gilding project.  Brush, roll or spray a small amount of slow size and record the time it takes to set and the amount of time you have to lay the leaf.
E.  A temperature of 65-75 degrees Fahrenheit and a relative humidity of 40-60% will yield the best results.
F.  This is an oil base size and is flammable.  This item can ONLY be shipped by GROUND SERVICES.

Ingredient Composition
Non-volatiles 60%
Mineral Spirits 40%
CAS# 852-41-3



COMBUSTIBLE! Keep away from open flames!


Avoid breathing vapors or spray mist.  Open doors and windows to assure fresh air during application and drying.  Avoid prolonged contact with skin.  Do NOT take internally.  Proper respiratory, eye and clothing protection should always be worn.

This product contains trace ingredients known to the State of California to cause cancer.


The conditions, methods of handling and use of this product are beyond our control and may be beyond our knowledge.  For this reason, we do not assume responsibility and expressly disclaim liability for loss, damage or expenses arising out of or in any way connected to the handling, storage, use or disposal of this product.