{"id":43689,"date":"2023-11-01T17:26:50","date_gmt":"2023-11-01T09:26:50","guid":{"rendered":"https:\/\/www.newtopchem.com\/?p=43689"},"modified":"2023-11-01T17:26:50","modified_gmt":"2023-11-01T09:26:50","slug":"covestro-desmodur-n3790-ba-hdi-polyisocyanate-curing-agent-light-fast-drying","status":"publish","type":"post","link":"http:\/\/www.newtopchem.com\/archives\/43689","title":{"rendered":"Covestro Desmodur N3790 BA HDI polyisocyanate curing agent light fast drying","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"\n\n\n\n\n
Type<\/strong><\/td>\naliphatic polyisocyanate(High functional group hexamethylene diisocyanate trimer)<\/td>\n<\/tr>\n
Form of Supply<\/strong><\/td>\nabout90% butyl acetate solution<\/td>\n<\/tr>\n
Purpose<\/strong><\/td>\nUsed as a lightfast, fast-drying polyurethane coating curing agent component<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Specifications<\/strong><\/p>\n\n\n\n\n\n\n\n\n
Features<\/strong><\/td>\nValue<\/strong><\/td>\nMeasurement unit<\/strong><\/td>\nMethod<\/strong><\/td>\n<\/tr>\n
NCOcontent<\/strong><\/td>\n17.8\u00b10.5<\/td>\n%<\/td>\nDIN EN\u00a0ISO 11909method<\/td>\n<\/tr>\n
Viscosity,23\u00b0C<\/strong><\/td>\nabout\u00a01600<\/td>\nmPa\u00a0\u00b7s<\/td>\nDIN EN ISO 3219\/A.3<\/td>\n<\/tr>\n
equivalent<\/strong><\/td>\nabout\u00a0236<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Flashpoint<\/strong><\/td>\nabout\u00a042<\/td>\n\u00b0C<\/td>\nDIN 53213\/1<\/td>\n<\/tr>\n
Density@20\u00b0C<\/strong><\/td>\nabout\u00a01.13<\/td>\ng\/ml<\/td>\nDIN EN ISO 2811<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

*This data is general information , are not part of the product specification.<\/p>\n

 <\/p>\n

Solubility\/Dilution<\/strong>
\nDesmodur \u00ae 3790BA 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, xylene, 100 No. naphtha solvent and its mixture diluted. Generally have good miscibility with these solvents.
\nBut The storage stability of the prepared solution must be tested. Polyurethane grade solvents should be used (less than 0.05% water, no hydroxyl or amino reactive groups). Aliphatic hydrocarbons are not suitable as solvents. Desmodur\u00ae N3790 should not be diluted below 40% solids. Solutions with low binder content may develop turbidity and precipitation after long-term storage.<\/p>\n

 <\/p>\n

Compatibility<\/strong>
\nDesmodur \u00ae N3790 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 N3790 is not compatible with branched polyester polyols such as Desmophen\u00ae 651 or polyether polyols such as Desmophen\u00ae 1380BT.<\/p>\n

 <\/p>\n

Features\/Applications<\/strong>
\nDesmodur \u00ae N3790 is mainly used as the 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 N3790 are suitable for self-drying or baking and are used for the finishing of automotive original equipment (OEM), car refinishing, transportation vehicles, industrial products and plastics.<\/p>\n

 <\/p>\n

Save<\/strong>
\nDesmodur \u00ae N3790 is moisture sensitive and should therefore be stored in its tightly sealed original container. When stored under proper conditions at room temperature, this product has a shelf life of at least 6 months.<\/p>\n

\ufffd.
\nBut The storage stability of the prepared solution must be tested. Polyurethane grade solvents should be used (less than 0.05% water, no hydroxyl or amino reactive groups). Aliphatic hydrocarbons are not suitable as solvents. Desmodur\u00ae N3790 should not be diluted below 40% solids. Solutions with low binder content may develop turbidity and precipitation after long-term storage.<\/p>\n

 <\/p>\n

Compatibility<\/strong>
\nDesmodur \u00ae N3790 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 N3790 is not compatible with branched polyester polyols such as Desmophen\u00ae 651 or polyether polyols such as Desmophen\u00ae 1380BT.<\/p>\n

 <\/p>\n

Features\/Applications<\/strong>
\nDesmodur \u00ae N3790 is mainly used as the 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 N3790 are suitable for self-drying or baking and are used for the finishing of automotive original equipment (OEM), car refinishing, transportation vehicles, industrial products and plastics.<\/p>\n

 <\/p>\n

Save<\/strong>
\nDesmodur \u00ae N3790 is moisture sensitive and should therefore be stored in its tightly sealed original container. When stored under proper conditions at room temperature, this product has a shelf life of at least 6 months.<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

Type aliphatic polyisocyanate(High functional group hex…<\/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":[14770],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/43689"}],"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=43689"}],"version-history":[{"count":1,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/43689\/revisions"}],"predecessor-version":[{"id":43690,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/43689\/revisions\/43690"}],"wp:attachment":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/media?parent=43689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/categories?post=43689"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/tags?post=43689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}