A nonyl-phenol ALERT
(or why won't my paint dry?)
Your Host and Tour Guide:
Paul Oman, MS, MBA - Progressive Epoxy Polymers, Inc.
Member: NACE (National Assoc. of Corrosion Engineers), SSPC (Soc. of Protective Coatings)
"Professionals helping Professionals"
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Nonyl Phenol is a common chemical additive in almost all epoxies. It has both good and bad properties
Good Properties:
* used to adjust the mix ratio of part A and part B to whole numbers
* can add useful properties to epoxies with addititives/thickeners (we had an epoxy paste that become a crumbling mess when we attempted to remove the nonyl from the formulation)
* used as a thinner with thicker epoxy resins
* useful as a low cost accelerator/catalyst for epoxy curing
Bad Properties:
* can be used as a way to cheaply 'water down' the epoxy to increase profits
* probably slightly reduces the epoxies physical properties
* reclassified as a 'hazmat' ingredient around 2009, meaning most epoxies require hazmat or ORM-D shipping
* nonyl-phenol has potential health risks
* appears to greatly retard the drying of alkyd (oil based) enamels applied over epoxies containing nonyl phenol (often to unacceptable levels) in high humidity/dew point conditions - see following link:
---------- lots more info on the nonyl vs. enamel paint issues / recommendations - CLICK HERE ---------
Properties of Epoxies without Nonyl Phenol:
* more likely to be non-hazmat to ship (other factors/ingredients also come into play)
* probably slightly better epoxy physical properties
* part B (the curing agent) more likely to be dark amber colored instead of clear or slightly amber
* traditional alkyd (oil based) enamel paints dry without problem over these epoxies
Does it contain Nonyl Phenol?
Check the MSDS sheet for parts A and B of your epoxy. You have a legal right to see the MSDS document. If the vendor/store
resists your request, find a different vendor or store.
Epoxies offered by Progressive Epoxy Polymers, Inc. without
Nonyl Phenol:
Premium No Blush (tm)
Marine epoxy (non hazmat to ship - can be air shipped worldwide - and cycloaliphatic
besides!) find in catalog
Water Prime (tm) (pigmented water-based epoxy) -- (cannot be sold in Southern California -- non-hazmat to ship) find in catalog
| Unlike our competitors, we like to develop a partnership with our customers by
turning them into educated buyers. That means discussing not just the benefits and plus of our epoxies but also
pointing out the weaknesses and possible problems. The other guys just don't do this. they either downplay or ignore
any bit of important information that might risk losing your business. We don't think that is right. It is certainly
not the fair and honest way to do business. Visit our competitors' sites and search for any information on: 1) amine blush, 2) shipping
restrictions, 3) nonyl phenol/enamel paint drying issues,
3) potlife issues, 4) price
gouging/markups, 5) UV yellowing, 6) formulated epoxies vs raw resin vendors,
7) customer comments
and feedback. We want to earn your business by being honest and upfront with you. You'll find our prices are good (too low to attrract distributors or agents), with honesty and service second to no one. |
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