Difference between revisions of "Primer"
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== Health and Safety == | == Health and Safety == | ||
| − | Primer is a mixture of methyl ethyl ketone, cyclohexanone, tetrahydrofuran, and acetone.<br> Tetrahydrofuran is a known carcinogen in animals, so primer should be used outside, while wearing rubber/latex safety gloves. In addition, long term exposure of skin to these low-polarity solvents will severely dry your skin out, | + | Primer is a mixture of methyl ethyl ketone, cyclohexanone, tetrahydrofuran, and acetone.<br> Tetrahydrofuran is a known carcinogen in animals, so primer should be used outside, while wearing rubber/latex safety gloves. In addition, long term exposure of skin to these low-polarity solvents will severely dry your skin out, possibly leading to dermatitis. Swallowing primer may result in death, and chronic inhalation of primer fumes can cause damage to several vital organs including the central nervous system, liver, and kidneys. Symptoms of acute (short term) overexposure include dizziness, headache, nausea, confusion, vomiting, and unconciousness. |
Be sure to read warnings and instructions. | Be sure to read warnings and instructions. | ||
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== Types of Primer== | == Types of Primer== | ||
Revision as of 05:35, 8 January 2007
A primer is a chemical substance used to prepare an object for painting or gluing. However, to potato-gun enthusiasts, primer is generally used in the process of combining PVC/CPVC fittings and pipes by preparing them for the gluing process.
How to use Primer
Primer is to be applied liberally to all PVC/CPVC joints, pipes or fittings (by use of a brush) where they are going to be connected together. In many cases, a brush is supplied with the primer.
Health and Safety
Primer is a mixture of methyl ethyl ketone, cyclohexanone, tetrahydrofuran, and acetone.
Tetrahydrofuran is a known carcinogen in animals, so primer should be used outside, while wearing rubber/latex safety gloves. In addition, long term exposure of skin to these low-polarity solvents will severely dry your skin out, possibly leading to dermatitis. Swallowing primer may result in death, and chronic inhalation of primer fumes can cause damage to several vital organs including the central nervous system, liver, and kidneys. Symptoms of acute (short term) overexposure include dizziness, headache, nausea, confusion, vomiting, and unconciousness.
Be sure to read warnings and instructions.
Types of Primer
There are two basic "types" of building primer commonly used with potato cannons: clear and purple primer(s). The difference is simply that purple primer has a dye added to aid in the enforcement of building codes. This dye is essentially impossible to remove, as it soaks into the pipe fairly deeply.
Both of these are manufactured by many various companies and can usually be found at your local hardware store. Purple primer is easier to see when applied, clear primer can often be hard to detect after in dries. However, purple primer often leads to messy and unsightly purple smears on and around the project you are working on, best prevented by a generous application of masking tape around the non-joint area prior to gluing. Both are equally effective at getting the job done; it is up to you to decide which to use.
External links
Wikipedia article on primer: [1]
