Yes. Denatured alcohol is the solvent used in Shellac. A 50/50 mix is commonly used when conditioning wood before staining.
GF advises extra care and prep when applying any finish over laminate surfaces because they are specifically designed not to mar and therefore they are not very "sand-able", making adherence difficult.
In addition to this non-permeable surface factor, General Finishes Gel Stain is an oil-based product, and it is more difficult to obtain proper drying characteristics over a dense manufactured surface such as laminate. Gel stains, as all wood stains, were formulated to go over raw wood which has an "open" surface and can absorb some of the stain.
General Finishes offers a complete line of oil based, water based and wax products. Application techniques differ between oil based products and water based products.
There are several reasons:
1. The cabinets were not prep cleaned and sanded properly. Sanding and cleaning are an essential part of any refinishing process.
In most cases, you can use a 220 sanding pad to scuff the surface and clean with a 50|50 mix of water and denatured alcohol.
Citrus strippers such as CitriStrip have a wax in them to keep the product from drying out after it's applied to the surface. Mineral spirits is recommended after the stripping solution because it's important to break down those waxes before getting started. However, mineral spirits is not compatible with water-based products.
On projects where a water-based product will be used, we recommend cleaning with Acetone which evaporates quickly and removes any residue. After using Acetone, wash with the 50:50 mix of denatured alcohol and water.
There is no easy solution to this problem. General Finishes Milk Paint has strong adhesion properties but there are several reasons this finish could fail:
You can apply Gel Stain to MDF, stained surfaces
It is normal to see a bit of stain on the brush when applying the first coat of topcoat. Topcoats often pull a bit of color on the first pass, but good preparation will minimize this.
To prepare open grains woods such as raw Oak for a water-based stain, we recommend sanding with 180-grit followed by no more than 220-grit sandpaper.
While Gel Stain can be applied over an existing finish, it was originally engineered for raw wood surfaces. We prefer applying the Gel Stain over a slip coat of mineral spirits instead of topcoat as shown in this video, "How to Apply Gel Stain to Raw Wood"
This response is true of prepping and existing finish on furniture, but kitchen cabinets are more problematic because they are work areas where grease, steam, food splatters and oil from hands are common. Prep is basically degreasing and abrading the surface for better adhesion. Oil or substances on hands really show up on a failed re-finish around doorknobs and hands if the surface is not cleaned thoroughly.