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This is cut and paste from a PDF file. Someone let me know if something like this shouldn't be on here ) I will delete or someone can delete.
"Pebble Fina Disclaimer Pebble Fina is a trademark pool finish manufactured and distributed through Pebble Technologies, Inc., hereafter PTI, and applied by Modern Method Gunite, Inc., hereafter MMG. Strengths: Pebble is a modified plaster surface comprised of silica sands, white cement, a proprietary blend of additives, namely pozzolans and polymers, and in most cases pigment. The finish itself most closely resembles a standard colored plaster surface. The use of the additives gives Pebble Fina superior durability while allowing the finishes to maintain its characteristic smooth finish. Concerns: By its nature, Pebble Fina will accentuate all the characteristics normally found in white or colored plaster. Inasmuch Pebble Fina may exhibit pronounced mottling, etching, pigment stains, streaks, unevenness of color and more noticeable check cracking and crazing. (See page 2 for definitions as stated in the National Plasterers Council, Technical Manual, Eighth Edition, Section 9.0 Terminology.) Also, variations of shade will exist between color sample chips and mixed plaster. Over time, the color may fade completely or grow gradually lighter and will often not be the precise shade that was anticipated. It's important to note that none of these conditions are considered a deficiency of the product. It is also important to note that additives are used and while they have been proven to help prevent surface problems, they are not fool-proof. You may still see changes in the surface's appearance, although most likely to a far lesser degree.
For the reasons listed above, PTI markets its Pebble Fina product as a classic “old world” finish. While it has superior durability, it will exhibit all the characteristics listed above. MMG markets Pebble Fina products and describes its characteristic as a “Faux finish”. The beauty is achieved by not having one consistent uniform color. A faux finish is expected to have variations in color, scratches, swirls, marks and imperfections.
I hereby have read and fully understand that Pebble Fina will exhibit the characteristic of a colored plaster resulting in mottling, streaking, unevenness in color, checking and crazing. All other issues referenced above are to be expected as natural accruing characteristic of a Pebble Fina Finish.
Second page is definitions:
Check Cracking
1. The common random crack pattern of a plaster surface that generally self-heals through the ongoing hydration and curing process, also known aby the slang terms of map cracking, hairline cracking, chip cracking, pattern cracking, or eggshell cracking. 2. Small cracks associated with the shrinkage from moisture loss and consolidation within a cementitious coating during set. 3. Small shallow cracks at closely spaced but irregular intervals on the surface of a plaster.
Craze Cracking
A slang term used within the industry referring to small random cracks. See Check Cracking. Etching Deterioration 1. The physical or chemical removal of material from the surface of the plaster. 2. The visible pitting or eating away of the surface plaster due to chemical or physical processes. 3. Any chemical or physical action on a surface that can remove or dissolving away elements or compounds of that surface. See also Pitting and Spot Etching.
Mottling
The blotchy appearance across the surface of cementitious finish, which can have varying shades of color, usually in a random pattern and are typically more pronounced in darker colored finishes. 2. The normal variations in a cementitious material as a result of the ongoing hydration process, which typically lessen or disappear over time. 3. The abnormal discolorations associated with the trowel bum, trapped moisture, or other situations, that typically do not resolve themselves.
Pitting
1. A slang term denoting a form of etching. 2. The early stage of corrosion of the reinforcing steel of a swimming pool. 3. The development of small cavities in the surface of the cementitious coating. See also Etching Deterioration.
References National Plasterers Council. (2016). Technical Manual. In NPC Technical Advisory Committee, Technical Manual (pp. 27-33).
