{"id":35120,"date":"2026-01-02T16:08:56","date_gmt":"2026-01-02T15:08:56","guid":{"rendered":"https:\/\/zinn-giesserei-goehler.com\/?post_type=product&#038;p=35120"},"modified":"2026-01-21T20:07:19","modified_gmt":"2026-01-21T19:07:19","slug":"universal-brazing-flux-fh10-kopie","status":"publish","type":"product","link":"https:\/\/zinn-giesserei-goehler.com\/en\/produkt\/universal-brazing-flux-fh10-kopie\/","title":{"rendered":"FH21 Brazing Flux"},"content":{"rendered":"<h4><strong>Universal brazing flux FH21 according to DIN EN 1045<\/strong><\/h4>\n<p><strong><span style=\"font-size: large;\">Base: Boron compounds, fluorides<\/span><\/strong><br \/>\n<strong><span style=\"font-size: large;\">Form: White paste<\/span><\/strong><br \/>\n<strong><span style=\"font-size: large;\">Working temperature range: approx. 750-1100 \u00b0C<\/span><span style=\"font-size: large;\"><br \/>\n<\/span><span style=\"font-size: large;\">Density: 1.4 g<\/span><span style=\"font-size: large;\">\/<\/span>cm\u00b3<\/strong><br \/>\n<strong>Includes a robust brush for application in every variant! <\/strong><\/p>\n<p>FH21 is a brazing flux for soldering copper, brass, copper alloys, nickel, nickel alloys, steels and hard metals. Unlike <a href=\"https:\/\/zinn-giesserei-goehler.com\/produkt\/universal-hartlotflussmittel-fh-10\/\">FH10<\/a>, it is not freely available and is therefore only for commercial and institutional users. However, you can also work very well with <a href=\"https:\/\/zinn-giesserei-goehler.com\/produkt\/universal-hartlotflussmittel-fh-10\/\">FH10<\/a> as an alternative.  <\/p>\n<p>Each variant includes a robust brush for applying the brazing paste.<\/p>\n<p>The flux residues can be corrosive and should be removed by washing or pickling.<\/p>\n<p>During processing, effective extraction \/ fresh air supply, e.g. by ventilation, must be ensured due to the soldering fumes.<\/p>\n<p>You can find brazing rods with suitable combinations for FH21 or <a href=\"https:\/\/zinn-giesserei-goehler.com\/produkt\/universal-hartlotflussmittel-fh-10\/\">FH10<\/a> in our <a href=\"https:\/\/zinn-giesserei-goehler.com\/en\/produkt-kategorie\/alloys\/brazing-alloys\/\">brazing assortment<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Universal brazing flux for soldering copper, brass, copper alloys, nickel, nickel alloys, steels and hard metals<\/p>\n","protected":false},"featured_media":35171,"template":"","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false},"product_brand":[],"product_cat":[298,424],"product_tag":[421,423,422,509],"class_list":["post-35120","product","type-product","status-publish","has-post-thumbnail","product_cat-alloys","product_cat-brazing-alloys","product_tag-brazing","product_tag-copper-pipes","product_tag-fh10","product_tag-fh21","product_shipping_class-free","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/product\/35120","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/media\/35171"}],"wp:attachment":[{"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/media?parent=35120"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/product_brand?post=35120"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/product_cat?post=35120"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/zinn-giesserei-goehler.com\/en\/wp-json\/wp\/v2\/product_tag?post=35120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}