Crackle Surface Preparation and Protection

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Extensive Crackle Testing
Extensive Crackle Testing
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[[File:ExtensiveCrackletesting005.png|200px|thumb|right|alt text]]  
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General rules:
General rules:
*When applying Rough Cracking and Smooth Cracking Textures:
*When applying Rough Cracking and Smooth Cracking Textures:

Revision as of 19:11, 15 December 2010

Clean and dust the walls down at each step. Poor adhesion of underlayers could cause the crackle to lift itself and the previous layers of paint down to the weakest point, ex. sheetrock mud dust beneath the primer.

To fix such areas, sand, reprime and paint as necessary and reapply the crackle to the affected areas.


Extensive Crackle Testing

alt text

General rules:

  • When applying Rough Cracking and Smooth Cracking Textures:

If you go thick, you don’t need size. If you use size, don’t apply thick.

  • We've tested different base paints, they work differently. Further, paint companies will change their formula over time and so to be sure, everything needs to be tested.
  • To create the best adhesion and the most interesting crackle pattern: use Proceed Low Absorbency base paint as primer and paint beneath our Crackle System. (include this on label info)

Note to Proceed Team - this is to be uploaded by Lori/lab team.

Upload photos of all 4 boards in the apps room Explain primer/base combo, history of walls and how we can’t predict completely what will happen Summary: To create the best adhesion and the most interesting crackle pattern: use Proceed Low Absorbency base paint as primer and paint beneath our Crackle System.

Internal Link to how to have Low Abs Tinted at a paint store:

Create a spreadsheet/chart - Next best recommendation using commercially available base paints: Basepaint/Primer analysis: Without size, no adhesion failures over any combo except SCT at 175 ml, slumps.

BM primer – most absorbent of SW, Proceed and Kilz

Any, but do not use Semigloss of any of these with size.. Benjamin Moore: Do not use eggshell

Sherwin-Williams:

Valspar:

Without size every base paint and sheen looks good but always test.

Minimum Thickness

Minimum Thickness with and without size (pics) for each product and description

Maximum Thickness

Maximum Thickness with and without size (pics) for each product and description With both Smooth and Rough Cracking Texture: 175 ml is max thickness, do not use Cracking Size beneath this thickness or apply over semi gloss, causes slumping and lifting. (pics)

Cracking Size magnifies the differences between the thicknesses and sheens. Crackle Size creates hold out of pattern, large platelets and no smaller cracks visible. BM SG and Satin, SW and VAL Satin all have something in them to create hold out and lose adhesion of RCT and SCT.

On each Page, wiki and tech sheets, (pics):

Best case scenarios:


Rough Cracking Texture:

• 175 ml: No size over Pro/SW primers on all bases • 75 ml: 1 coat of Size over V SG and Pro/SW primers. Do not use 1 coat of size over BM sg and V s • 25 ml: all fine except without size photo ideas: 2 coats of size 75 ml = the crackle pattern of 175 ml w/out size….photo and do cost analysis..have side by side images

Smooth Cracking Texture:

• 175 ml: not recommended • 75 ml: no size, Kilz/Sw primer and semigloss or satin? • 25 ml: pro 2 coats and sw largest cracks

Transparent Cracking Glaze

• over Proceed • not recommended over BM primer???

An article idea: When Size meets Texture Generally speak about who we tested.

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