Access all Safety Data Sheets (SDS) for all Benjamin Moore coatings. The franc also commonly distinguished as the French franc (FF), was a currency of France. Between 13, it was the name of coins worth 1 livre tournois and. Overview: Timbermate Woodfiller is an Interior grade 4 in 1 Woodputty, Grainfiller, Edgefiller and Crackfiller. When thinned slightly with water can also be used as a. Interested in using a specific technique or product? Explore our collection of How-To Articles to find ideas on how to improve your home inside and out. Please note we are now using PERS for our 24-hour Emergency Telephone Response Service (USA) 800-633-8253. Every year on April 28 we pay our respects to, and remember, the thousands of workers who have been killed, injured or suffered illness as a result of work-related.

From Caulk to Sealants. True sealants are less frequently used than caulks. Everyone's an expert, because everyone has used caulk. Here are a few quotations from some caulking experts that I've met over the years.

Anyone who could pound sand in a rat hole can apply caulk. True sealants are less frequently used than caulks. Caulks are based on less expensive polymers such as linseed oil, polybutene, asphalt, butyl rubber, SBR rubber, vinyl acetate and acrylic latex. Caulks are a price- driven market where performance is often subordinate to economy. Sealants are a distinctly different class of product. Caulks become hard and brittle and crack, split or severely chalk within three years.

Minwax High Performance Wood Filler is a two-part wood filler for filling gouges, holes and damaged areas in wood and acts as a wood adhesive.

354 household product manufacturer contacts and the over 6,000 household products they make - learn how and why to elliminate their use.

Shrinkage applies excessive stress at the interface between the construction material and the caulk mass. Adhesion failure gets worse with increased volume shrinkage. Most caulks are designed for the . Homeowners have generally accepted caulk failure as part of life, and, since they are usually looking for a bargain, they seldom get their hands on a professional- grade sealant.

Also, in buildings that require painting every four years re- caulking is not regarded as a liability, simply because expectations do not exceed the life of the paint. Butyl caulks have movement capability in dynamic joints, but don't recover well from extension, and often take a permanent set when compressed. Solvent loss and related shrinkage limit the use of butyl caulk to small joints.

To verify the quality of a butyl caulk, make sure it conforms to ASTM C 1. TTS- 0. 01. 65. 7. Many of these early sealants performed well in small joints such as residential siding and trim. Economic pressures have caused many formulators to use vinyl acetate as a copolymer or in blends with higher quality acrylic resins. These commodity caulks often have poor adhesion and weathering properties. Acrylic latex caulks are governed by ASTM C 8.

In the 1. 95. 0s, Federal Specification TT- 2. B, for two- part synthetic rubber sealants, was issued to ensure . The first types of elastomeric sealants regulated by these specs were based on polysulfide rubber. Polysulfide Sealants Polysulfide rubber was developed by the Thiocol Chemical Co. Because polysulfide sealants have the longest record of field experience, they still occupy a significant share of the market today. Polysulfide is the only elastomeric sealant to have its own national specification, USAS 1.

SS- S- 0. 02. 00. Install Windows Xp On Kingston Ssd Now there. To meet this performance spec, a 4. Their one disadvantage is that they are slow to cure. Polysulfides have a pungent mercaptan (rotten eggs) odor and almost always require a primer. Properly installed, polysulfide sealants can last up to 2. Almost all silicone sealants cure by exposure to moisture. Silicone sealants are usually clear or translucent, to coordinate with various colored building materials, and can also be pigmented to allow color matching.

They cure faster than polysulfides and are capable of fairly deep cures. The acetoxy- cure often resulted in corrosion on metal surfaces, and a neutral cure system based on an oxime reaction is now used where unprotected metal is involved. In general, the acetoxy- cure sealants hold their color better than the oxime- cure silicones. On the other hand, the oxime- cure products have the best adhesion and resistance to weather, though they often discolor. This is a big problem with cheaper acetoxy- cure silicone sealants that tend to be loaded with high amounts of filler. One area where an oxime silicone has done well is in EPDM splicing where Carlisle Syn. Tec has successfully used it as an .

With improvements in formulation and packaging, shelf life problems were gradually improved. Urethane sealant reactions tolerate only the very small amounts of water vapor needed to sustain normal curing. Excess moisture from wet surfaces or rain often causes an undesirable side reaction in which CO2 is given off as a gas. When outgassing occurs, the urethane composition is seriously compromised. Low- cost urethane sealants based on aromatic isocyanates are subject to discoloration (.

More expensive aliphatic isocyanates are now available when color stability is a requirement. Today, one- part urethanes represent 2. The continued efforts of sealant formulators have now improved urethanes to the upper limit of their potential. Today urethane sealants are specified in many single- ply roofing details where they are used extensively in flashing, termination bars, reglets, coping and pitch pans. Those urethane sealants that conform to TTS- 0. As a general rule, the cheaper the price, the more doubtful the performance. Vulkem, NP- 1 and Sika urethanes are used extensively in roofing.

Polyether sealants skin over and cure much faster than silicones and urethanes, and therefore exhibit very little dirt pickup. They also cure much deeper than urethane. These low- modulus materials are capable of up to 1,0.

Very little moisture is required to trigger a rapid polymerization reaction in polyether sealants. Also, moisture contamination on joint surfaces cannot cause the kind of outgassing reactions seen with urethanes. Primers are occasionally specified. Weather resistance is equal to that of the three dominant polymer sealants.

A service life of somewhere between 2. Polyethers contain no carcinogenic material and conform to California's Proposition 6.

These are the most environmentally and OSHA- compliant sealants on the market today. They are also the most forgiving and roofer- friendly materials available. Polyethers are competitively priced between urethanes and oxime- cure silicones. Unfortunately they often write prescriptive rather than performance specifications.

For example, when polysulfide sealants were at the peak of their market life it was difficult to get a silicone or a urethane with better potential performance specified, because the prevailing specifications only allowed polysulfide sealant as a generic requirement. In time, other polymer types were accepted. However, the NRCA Roofing and Waterproofing Manual specifies urethane on every one of its single- ply detail drawings. I believe that NRCA should specify sealant performance that meets or exceeds a TTS- 0.

In critical areas where movement is anticipated, use a good grade of urethane or polyether sealant. On flashing: use polyether sealants. Urethane sealants usually don't adhere to EPDM. On weathered Hypalon: don't attempt to use a sealant; it will probably fail. Carlisle and Chem Link have an effective TPO primer.

Urethane does not bond at all to Kynar. The best and most appropriate sealant in the wrong hands can lead to failure. Allow only experienced people to work on sealant applications. Poor workmanship can affect a warranty- or even your company's reputation.

Just as welding rod companies don't warrant a welder's work, don't expect a sealant manufacturer to warrant your employees' work. Urethane sealant manufacturers restrict the use of their product to temperatures above 4.

F. Silicones are also limited to 4. F. Polyethers work well down to 3. F. Rain can have a detrimental effect on sealant performance, especially with urethane. Polyethers skin over rapidly and are virtually unaffected by rain. Remove all contamination that could interfere with adhesion. Previous sealant applications must be thoroughly cleaned out.

Silicone and polyether will adhere to such contamination; however, a rigorous clean- out of the joint with a wire brush will help ensure success. Xylene works well for urethane and polysulfide because these polymers are miscible in aromatic solvent. Don't use aromatic or aliphatic solvents prior to bonding with silicone or polyether. These solvents leave an oily residue that interferes with adhesion. Alcohol, acetone or MEK work best for silicone and polyether. These are dissolved in a solvent for ease of application and for penetration into porous materials. Check with the sealant manufacturer for the most appropriate primer.

Amino- silane coupling agents work best with silicone, polyether and most urethanes.

Ace Hardware. Material Data Safety Sheets (MSDS) are designed to provide specific information regarding the properties of a particular chemical or substance. Information in a MSDS form will advise the end user on handling and storage, environmental measures and proper disposal along with other pertinent information.

Search for material safety data sheets using Ace's online MSDS database.