Companies like usg make a plaster in a multitude of varieties for specific uses. Start with something like durabond 90 or sheetrock 90 which cure in 90 minutes through a chemical process, not by drying. Durabond or mud my 10 man hours included lots of setup, it was a dining room with lots of antiques, tear out old plaster, cut and hang 38s drywall, tape, mud and sand, clean and mop. The dental plaster is nice for casting walls and bridge piers and abutments, but too expensive for general landforms. Soft and easy to use, usg boral diy patching plaster will fill cracks and patch holes in plasterboard walls and ceilings quickly and without fuss. I have some jobs out there for the past 12 years with no cracks, no tape or mesh on them either. Ive used plaster of paris, hydrocal, and dental plaster, but all harden too quickly for my tastes.
Are there differences to drywall joint compound and plaster. The plaster i have used starts setting in 3060 minutes hence my reference to thinset. Sheetrock brand durabond joint compounds provide a hard, plaster like surface when dry and are virtually unaffected by humidity. Sheetrock joint compound is use for patching and joint finishing, 60 minute working time and hard finishing surface. Topping compound is a lowshrinking compound that goes on smoothly and offers a very strong bond. Durabond 90 is forced into the crack from both sides to ensure all voids are eliminated.
Skim coating over previously painted plaster can have some bonding issues, so be sure and add a bonding agent to help the first coat stick. Setting compound durabond 90 is forced into the crack from both sides to ensure all voids are eliminated. But they are almost impossible to sand and they cannot be reactivated with water. It hardens quickly you guessed it, in 45 minutes, shrinks very little and dries hard as. Usg durabond 90 25poundbag allied building products. Although plaster washers are designed to flatten as the screw is driven home, they nevertheless, remain slightly proud of the wall surface. Sheetrock brand 90 settingtype drywall compound is an excellent compound for embedding tape, bead and trims. Settingtype joint compound allows for oneday drywall finishing and nextday decoration of drywall interiors and exterior soffits.
Also a couple of the corners had crumbled and are now dug out with trenches about an inch wide. This website uses cookies and other tracking technologies also known as pixels or beacons to aid your experience such as viewing videos, as well as performance cookies to analyze your use of this website and to assist with marketing efforts. Maybe they have something that lasts longer or maybe it is some combo plastercompound. Jul 17, 2017 patching compound made with calcium sulphate, limestone and crystalline quartz, patching compound sets in about 20 minutes and makes durable repairs on wood, plaster and concrete, and it can be used to level subfloors.
When installing drywall, joint compound, or mud, is an essential component of this process for filling seams and screw holes. Economical, plaster patching product for everyday household repairs to plaster and drywall. It provides low shrinkage and superior bond, making it excellent for projects like laminating drywall. When extreme accuracy and greater surface hardness are required as in duplicator models, use usg ultracal 30 gypsum cement. Plaster application and finishing requires much more skill then mudding sheetrock, as you cannot effectively sand away bad plaster work without having negative impact on the quality of the finished product, so you have to get it right the first time, every time. I think mainly because of the unique expertise required there are probably drywallers to every plaster pro here in san diego, plaster projects tend to cost a bit more.
Skim coat plaster with durabond 90 plaster forum drywall talk. Never add usg gypsum accelerator directly to water or mix it with water to form a solution before adding it to the compound. Truth is just one mans explanation for what he thinks he understands. Settingtype joint compound is ideal for heavy fills in drywall interiors and exterior ceiling boards. United states gypsum company produced asbestos products for decades, and after a series of lawsuits, established an asbestos trust fund. If your remodeling projects involve old plaster walls with moderate to severe damage, bathrooms with new tubshower installations, or jobs that need to be completed in a hurry, then you need some inside information about how to use settingtype joint compound. I was going to get the 90min durabond, but went with the dap plaster of paris instead. Durabond vs easysand i love the durabond 45 the real stuff.
The mixing ratio is 3 parts powder to one part water. Jan 18, 2017 the mixing ratio is 3 parts powder to one part water. It is ideal for heavy fills and is virtually unaffected by humidity. Its true, you dont want to use plaster of paris for repairs but neither do you want to use drywall compound either too soft, it would recrack is that what the.
Hardening action cannot be prevented or delayed by dilution with water. Just have to be careful not to get to heavey on the bond. Durabond is a trademarked name that refers specifically to a product made by usg. You may choose one type for your project or use a combination of compounds for the. Quickset lite 18lb lightweight drywall joint compound. The us gypsum company manufactured asbestos containing plaster, tape, joint, compound and cement between 1920 and 1978 under the popular brand names of imperial, red top, durabond and perfatape. So if you need to fill a large hole, start with them but dont let it sag or stand out beyond the wall. Sponge or wet rag over crack to remove plaster dust. Its also handy for repairing cracks and holes in existing drywall and plaster surfaces. Easy sand 90 lightweight settingtype joint compound. I use that to fix the big holes and first coat, the reason i use it for first code only is its going to stand up 2 expansion and contraction for the most part. Instead, i use durabond 90, a patching plaster which sets in approximately 90 minutes. Sand entire area knocking down any sand texture or multiple layers of paint.
Larger depends on nature of the damage and what is there now. In some areas i can see down to a rough, sandy browncolored plaster. Pros is you can coat flats and angles in the same day. Jul 02, 2009 many people consider plaster finishes to be more high end than drywall, and they have seen a surge in popularity. Plasters come as a powder and must be mixed on site at the time of use. Our local box store sold us some durabond 90 and mesh tape to use for the joints i plan to use it to fill in some small spots as well. Light sand 90 in the 10inch,and regurlar mud for finishing. Topping compound typically is sold in dry powder that you mix with water. Its not as hard once cured as true whitelime plaster, but i doubt you can work with real plaster. Drywall mud comes in four basic types, and each has its advantages and disadvantages.
Patching compound made with calcium sulphate, limestone and crystalline quartz, patching compound sets in about 20 minutes and makes durable repairs on wood, plaster and concrete, and it can be used to level subfloors. I top with 2 coats 1 usg green all purpose followed by 1 usg lightweight blue can. Aug 21, 2019 topping compound is the ideal mud to use after the first two coats of taping compound have been applied to a taped drywall joint. Take the warranty and shove it up their asses as far as i care. Skim coat plaster with durabond 90 the walls are plaster and there are some cracks some hairline and some an inch wide with a few places that open up to about the size of a mouse pad. It provides extremely low expansion properties, gradual set and a long period of plasticity. The compound is lightweight for easy handling and sands easily for fast, smooth finishing. Sheetrock brand durabond joint compounds provide a hard, plasterlike surface when dry and are virtually unaffected by humidity. Usg ultracal brand 30 gypsum cement is designed for the patternmaking industry as the ultimate gypsum cement tooling medium. A good job will use two different types of plaster.
Accelerator amount approximate set time minutes tablespoon tablespoon durabond 90 durabond 45 durabond 20 per bag per bread pan 1. To meet varying job requirements, a full line of durabond joint compounds has been developed to provide a choice in setting times. You can reverse it and add powder to water once you are comfortable with the. Cgc durabond 90 repair compound is made for patching abovegrade interior concrete and masonry ideal for repairing gypsum drywall and plaster with the strength. Making an invisible patch in a lathe and plaster wall. The name is followed by a number, such as durabond90, which represents the setting time, in minutes.
Watch our video on using patching plaster to repair cracks in walls. On my plaster reconstruction jobs i have a special mix with 2 or 3 different muds and quartz. Available in 5, 20, 45, 90, and 210 minute set times. Mar 17, 2012 ive used plaster of paris, hydrocal, and dental plaster, but all harden too quickly for my tastes. Oct 15, 2012 skim coat plaster with durabond 90 the walls are plaster and there are some cracks some hairline and some an inch wide with a few places that open up to about the size of a mouse pad. I thought the plaster of paris was better after reading some posts. Joint compounds, westpac fast set or usg easy sand youtube. We use high denisity 90 for taping through the taper. My husband and i are trying to restore our apartment in an old prewar building. Quick set lite compound provides a lightweight, easy to sand finish for.
Buy sheetrock 381630 durabond 90 joint compound, 25 lb, min at. It hardens quickly you guessed it, in 45 minutes, shrinks very little and dries hard as a rock. It comes as a powdermostly plaster of parisyou mix with water as you need it. For interior gypsum panels and exterior gypsum ceiling boards. Its a coarse material that is unsuitable for wall repair unless you cover it with something else, such as joint compound. For starters, buy a bag of 45 minute setting drywall compound.
Sheetrock 381630 durabond 90 joint compound, 25 lb, min. With its low shrinkage and superior bond, it is excellent for laminating drywall and patching plaster. Sheetrock 381630 durabond 90 joint compound, 25 lb. At the joint between the existing wall and the new patch, apply self adhesive fiberglass mesh tape. Enjoy watching the differences between 20, 45 and 90 minute quick set joint compound, ready mix joint compound and lightweight spackle. Product title sheetrock 381630 durabond 90 joint compound, 25 lb.
Compound is ideal for heavy fills and are virtually unaffected by humidity. Durabond 90 or other 60 or 90 minute products set chemically before drying which prevents shrinkage. Before purchasing, homeowners and other doityourselfers may want to consider various factors such as cost, ease of mixing and installation, and product lifespan. Maybe they have something that lasts longer or maybe it is some combo plaster compound. Sr mud will disolve and get meally at the edges where it is not protected by paint. Drywall mud, also called joint compound, is a gypsumbased paste used to finish drywall joints and corners in new drywall installations. Usg tufstone gypsum cement is designed for solid casting and is ideal for giftware applications. Usg tufstone gypsum cement is uniquely formulated with fibers to withstand three times the impact resistance of standard plaster materials.
Hi, that wall does look like a good candidate for some diy plaster repair. When rought sanding make sure the edges and stop marks are sanded good,or the. Its special formulation provides a lightweight product that has a superior bond, permits sameday joint finishing and is easy to handle and sand. Durabond vs easysand i have used durabond brown bag for 30 years easy sand is softer, also most of the drywallers i have worked around cant use brown bag cause they have a hard time working with it and keeping it smooth, so with easy sand if they screw up the sanders will clean up their half azz job.
The following diy drywall finishing tips will help explain the why, when and how to use settingtype compounds. In the video above we add water to powder to show visually the water to powder ratio. Durabond vs easysand i have used durabond brown bag for 30 years easy sand is softer, also most of the drywallers i have worked around cant use brown bag cause they have a hard time working with it and keeping it smooth, so with easy sand if. Only make enough sheetrock to use in the time allotted. The durabond 90 will produce a gorgeous smooth finish that will match the existing plaster and its sandable. Old house authority ask the authority plaster repair. The walls have small to mediumsized areas where some of the plaster is missing and there are numerous jagged cracks in the walls. Click to add item usg pink tint plaster bonder 1 gallon to the compare list.