{"id":43704,"date":"2023-11-02T09:44:55","date_gmt":"2023-11-02T01:44:55","guid":{"rendered":"https:\/\/www.newtopchem.com\/?p=43704"},"modified":"2023-11-02T09:44:55","modified_gmt":"2023-11-02T01:44:55","slug":"covestro-desmodur-n3375-ba-sn-hdi-trimer-curing-agent-for-light-resistant-polyurethane-coatings","status":"publish","type":"post","link":"http:\/\/www.newtopchem.com\/archives\/43704","title":{"rendered":"Covestro Desmodur N3375 BA\/SN HDI trimer curing agent for light-resistant polyurethane coatings","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Type<\/strong>\u00a0Aliphatic polyisocyanate (HDI trimer )
\nForm of Supply<\/strong>\u00a0About 75% butyl acetate\/solvent naphtha No. 100 (1:1) solution
\nApplication<\/strong>\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Used as a curing agent component for light-resistant polyurethane coatings<\/h2>\n

Specifications
\nCharacteristics \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Value \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Unit \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Test Method<\/strong>
\nNCO Content
\nContent of non-volatile components
\n(2.2g\/120min\/100\u00b0C)
\nViscosity, 23\u00b0C \u00a0 \u00a0 \u00a0 \u00a0 85 \u00b1 15 \u00a0 \u00a0 \u00a0 \u00a0 mPa\u00b7s \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 M068-DIN 53019
\nColor Value (Hazen)
\nHDI Monomer \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u2264 0.15 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 %
\nOther data*
\nCharacteristics \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Value \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Unit \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Test Method<\/strong>
\nViscosity, 25\u00b0C \u00a0 \u00a0 \u00a0 \u00a0 approx. 75 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 mPa\u00b7s \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 DIN EN ISO 3219\/A.3
\nEquivalent about 258
\nFlash point \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 approx. 46
\nDensity at 20 \u00b0C \u00a0 \u00a0 \u00a0 approx. 1.08 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 g\/ml \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 DIN EN ISO 2811
\n*This data is general information and is not part of the product specification.<\/h2>\n

Solubility\/Dilution\u00a0<\/strong>
\nDesmodur\u00ae N3375 BA\/SN can be used with esters, ketones, and aromatic solvents such as: ethyl acetate, butyl acetate, methoxypropyl acetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, toluene, Dilute with xylene, No. 100 naphtha solvent and their mixture. Generally have good miscibility with these solvents. However, the storage stability of the prepared solution must be tested. Polyurethane grade solvents should be used (less than 0.05% water, no reactive groups such as hydroxyl or amino groups). Aliphatic hydrocarbons are not suitable as solvents. Desmodur\u00ae N 3375 BA\/SN should not be diluted below 40% solids. Solutions with low binder content may develop turbidity and precipitation after long-term storage.<\/h2>\n

Compatibility\u00a0<\/strong>
\nDesmodur\u00ae N3375 BA\/SN can generally be used with the following products. Namely: Desmodur\u00ae N100, N75, N3200, N3400, N3600 and Desmodur\u00ae Z4470 type aliphatic polyisocyanate; Desmodur\u00ae L, HL and IL type aromatic polyisocyanate; Desmophen\u00ae 670 type polyester polyol; Desmophen\u00ae A type polyisocyanate Acrylate. However, the compatibility of the prepared solutions must be tested. Desmodur\u00ae N3375 BA\/SN with support\ufffd\ufffdPolyester polyols such as Desmophen\u00ae 651 or polyether polyols such as Desmophen\u00ae 1380 BT are incompatible.<\/h2>\n

Feature\/Application\u00a0<\/strong>
\nDesmodur\u00ae N3375 BA\/SN is mainly used as a curing agent component of lightfast two-component polyurethane coatings, which have excellent chemical and weather resistance, outstanding gloss retention and excellent mechanical properties. Ideal co-reactants are polyacrylate or polyester polyols. Coating systems formulated with Desmodur\u00ae N3375 BA\/SN are suitable for self-drying or baking and are mainly used for the finishing of automotive original equipment (OEM), car refinishing, transportation vehicles, industrial products and plastics.<\/h2>\n

Save\u00a0<\/strong>
\n\u2013 Store in original Covestro airtight containers.
\n\u2013 Recommended storage temperature: 0-30\u00b0C.
\n\u2013 Protect from moisture, heat and foreign substances.
\nGeneral information: This product is sensitive to moisture, storage at high temperature will cause the product to darken in color and increase in viscosity.<\/h2>\n

Shelf Life<\/strong>
\nThe product complies with the specifications stated in the above \u201cSpecifications or Characteristic Values\u201d within 9 months from the date of shipment stated on the transport document, provided that the product has been stored in full compliance with the requirements of the above \u201cStorage\u201d clause and has been properly handled or characteristic values \u200b\u200b(as applicable). If the product exceeds the above-mentioned 9-month period, it does not mean that it no longer meets the set values \u200b\u200bin the specifications or characteristic values. However, it is recommended that products older than 9 months from the date of shipment be tested before use to confirm that they still comply with the values \u200b\u200bset forth in the specification or characteristic values. The manufacturer does not make any promises for products that have been shipped for more than 9 months from the date of shipment, and does not accept any responsibility and liability for non-conformity to specifications or set values \u200b\u200b\u200b\u200bin the characteristic values.<\/h2>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

Type\u00a0Aliphatic polyisocyanate (HDI trimer ) Form of Sup…<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[14240],"tags":[14776],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/43704"}],"collection":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/comments?post=43704"}],"version-history":[{"count":1,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/43704\/revisions"}],"predecessor-version":[{"id":43705,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/43704\/revisions\/43705"}],"wp:attachment":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/media?parent=43704"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/categories?post=43704"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/tags?post=43704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}