{"id":11581,"date":"2019-09-30T17:15:14","date_gmt":"2019-09-30T17:15:14","guid":{"rendered":"https:\/\/decorativeconcreteu.com\/?page_id=11581"},"modified":"2020-01-23T19:30:16","modified_gmt":"2020-01-23T19:30:16","slug":"concrete-preparation-manual","status":"publish","type":"page","link":"https:\/\/decorativeconcreteu.com\/concrete-preparation-manual\/","title":{"rendered":"Concrete Preparation Manual"},"content":{"rendered":"\n\t\t\t\t\n\t\t\t
It\u2019s always recommended to wear the appropriate Personal Protective Equipment (PPE) for the task at hand and follow your employer\u2019s safety policy. Commonly known PPE such as safety glasses, gloves, earplugs, respirators, etc, are recommended as needed. (If applying repairs, see Repair Manual)<\/em><\/p> Acid etching is used for exterior concrete prepping by cleaning and opening up the pores of concrete. This is the best method of prep for exterior cementitious and Graniflex\u2122 applications.<\/p>\t\n\t\t\t (If applying repairs, see Repair Manual)<\/em><\/p> Shot blasting is used for interior or exterior concrete prepping by cleaning and opening up the pores of the concrete, while creating a profile. This is a good method of prep for interior cementitious, epoxy, and Graniflex\u2122 applications.<\/p>\t\n\t\t\t (If applying repairs, see Repair Manual)<\/em><\/p> Grinding is used for interior or exterior concrete prepping by removing previous coatings, sealers, and diminishing imperfections. This is a good method of prep in addition to shot blasting for cementitious and epoxy applications.<\/p>\t\n\t\t\t Concrete Preparation Personal Protection It\u2019s always recommended to wear the appropriate Personal Protective Equipment (PPE) for the task at hand and follow your employer\u2019s safety policy. Commonly known PPE such as safety glasses, gloves, earplugs, respirators, etc, are recommended as needed.For further information on OSHA requirements, visit osha.govStatistics show 73% of all coatings fail due […]<\/p>\n","protected":false},"author":25893,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"_links":{"self":[{"href":"https:\/\/decorativeconcreteu.com\/wp-json\/wp\/v2\/pages\/11581"}],"collection":[{"href":"https:\/\/decorativeconcreteu.com\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/decorativeconcreteu.com\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/decorativeconcreteu.com\/wp-json\/wp\/v2\/users\/25893"}],"replies":[{"embeddable":true,"href":"https:\/\/decorativeconcreteu.com\/wp-json\/wp\/v2\/comments?post=11581"}],"version-history":[{"count":0,"href":"https:\/\/decorativeconcreteu.com\/wp-json\/wp\/v2\/pages\/11581\/revisions"}],"wp:attachment":[{"href":"https:\/\/decorativeconcreteu.com\/wp-json\/wp\/v2\/media?parent=11581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
For further information on OSHA requirements, visit osha.gov<\/a>Statistics show 73% of all coatings fail due to bad or improper prep. Prep is the most important step in the installation process.<\/strong><\/p>\t\n\tAcid Etching<\/strong><\/a>
\nShot Blasting<\/strong><\/a>
\nGrinding<\/strong><\/a>\n\t\t\t\n\t\t\t\tAcid Etching Step-by-Step\n\t\t\t<\/h3>\n\t\t
\n\t\t\t\tAcid Etching Benefits and Features\n\t\t\t<\/h3>\n\t\t
\n\t\t\t\tAcid Etching Products & Tools\n\t\t\t<\/h3>\n\t\t
\n\t\t\t\tAcid Etching Tips and Tricks\n\t\t\t<\/h3>\n\t\t
Improper surface preparation can result in poor bond and lack of coating adhesion.
Mask off any areas not wanting etched. Mask off any metal objects that may corrode when acid vapors are present (brass thresholds and brass door kickplates).
Ammonia (6 parts water + 1 part ammonia) is a great alternative to neutralizing instead of using baking soda.<\/li><\/ol>\t\n\t\t\t\n\t\t\t\tShot Blasting Step-by-Step\n\t\t\t<\/h3>\n\t\t
\n\t\t\t\tShot Blasting Benefits and Features\n\t\t\t<\/h3>\n\t\t
\n\t\t\t\tShot Blasting Products & Tools\n\t\t\t<\/h3>\n\t\t
\n\t\t\t\tShot Blasting Tips & Tricks\n\t\t\t<\/h3>\n\t\t
The shot gate can be adjusted wider for quicker\/deeper profiling.
All four wheels must be on the floor while the machine is running (you will throw shot around the room and it can potentially hurt someone).
Always wear eye protection while running the machine (same goes for others in the area as well).
Always move the shotblaster while it is running (stopping in one spot will allow the blaster to chew into your concrete).
When done, collect shot on the ground with magnet, release magnet into cardboard or paper and pour shot into a small bucket to reuse again.<\/li><\/ol>\t\n\t\t\t\n\t\t\t\tGrinding Step-by-Step\n\t\t\t<\/h3>\n\t\t
\n\t\t\t\tGrinding Benefits & Features\n\t\t\t<\/h3>\n\t\t
\n\t\t\t\tGrinding Products & Tools\n\t\t\t<\/h3>\n\t\t
\n\t\t\t\tGrinding Tips & Tricks\n\t\t\t<\/h3>\n\t\t
(a deeper scratch pattern is required for proper adhesion). Note: grinding is not a proper preparation method to get the full benefits of Permaflex (shotblasting or the acid etching method is needed).
The smaller the grinder head the more marks you are prone to leave on the surface.
The idea of grinding before coating is to \u201cbreak the surface tension\u201d of the slab to allow the coating to properly penetrate.
Hard concrete requires soft bonded diamonds for effective grinding.
Soft concrete requires hard bonded diamonds for effective grinding.
The \u201cbond\u201d refers to the metal matrix that is holding the diamonds.
Further in-depth details on diamonds:
It seems counter-intuitive, but a hard concrete floor requires a low wear resistance, or \u201csoft bond;\u201d while a soft concrete floor requires a high wear
resistance, or \u201chard bond.\u201d The terms hard bond and soft bond aren\u2019t technically correct, but for the purpose of simplicity let\u2019s stick with them.
A bond must be matched to the material it is intended to grind or the tool will not function well. For example, if a soft concrete floor is ground with a tool designed for medium concrete, the tool will only have a fraction of the intended life and will wear out prematurely. This is because the wear resistance of the bond is too low for the concrete, which results in the tool needlessly wearing away and releasing new diamonds before the surface
diamonds have broken down. Diamond size is sorted by mesh or grit size and there\u2019s an inverse relationship between the size of the diamond and the grit number. This means a large diamond has a small number (18\/20, 30\/40) and a small diamond has a large number (80\/100, 170\/200). Large diamonds are used for aggressive removal while small diamonds are used for honing and polishing. See chart below.<\/li><\/ol>\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<\/a>\n","protected":false},"excerpt":{"rendered":"