{"id":132277,"date":"2026-10-08T15:29:42","date_gmt":"2026-10-08T15:29:42","guid":{"rendered":"https:\/\/3dbgprint.com\/?post_type=product&#038;p=132277"},"modified":"2026-10-08T15:31:29","modified_gmt":"2026-10-08T15:31:29","slug":"polymaker-ht-pla-pro","status":"publish","type":"product","link":"https:\/\/3dbgprint.com\/en\/produkt\/polymaker-ht-pla-pro\/","title":{"rendered":"Polymaker HT-PLA Pro \u2013 1.75 mm, 1 kg PLA Filament"},"content":{"rendered":"<p><strong>Polymaker HT-PLA Pro<\/strong> is a tough PLA filament for functional prototypes, housings, brackets, jigs and fixtures. It combines the familiar PLA printing workflow with improved impact strength and layer bonding compared with Polymaker HT-PLA. Choose <strong>Black or Grey, 1.75 mm, 1 kg<\/strong>.<\/p>\n<h2>Key benefits<\/h2>\n<ul>\n<li>Around twice the notched impact strength of HT-PLA: 9.94 versus 4.94 kJ\/m\u00b2 in X\u2013Y.<\/li>\n<li>Stronger layer bonding, with Z-axis tensile strength of 26.8 MPa.<\/li>\n<li>3D printing speeds up to 300 mm\/s with suitable hardware and settings.<\/li>\n<li>A standard brass nozzle is sufficient; no enclosure is required.<\/li>\n<li>Finished parts can be annealed to improve heat resistance under load.<\/li>\n<\/ul>\n<h2>HT-PLA Pro vs HT-PLA<\/h2>\n<p>Pro offers higher impact strength and improved strength between layers. This is useful for parts that are assembled, handled frequently or exposed to impacts. Compare it with <a href=\"https:\/\/3dbgprint.com\/en\/produkt\/polymaker-ht-pla\/\">Polymaker HT-PLA<\/a> for your application.<\/p>\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Property<\/th>\n<th scope=\"col\">HT-PLA Pro<\/th>\n<th scope=\"col\">HT-PLA<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Notched Charpy, X\u2013Y<\/td>\n<td>9.94 kJ\/m\u00b2<\/td>\n<td>4.94 kJ\/m\u00b2<\/td>\n<\/tr>\n<tr>\n<td>Tensile strength, Z<\/td>\n<td>26.8 MPa<\/td>\n<td>20.8 MPa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>These are typical laboratory values. Part orientation, geometry, walls, infill and print settings affect the strength of the finished part.<\/p>\n<h2>Heat resistance: Vicat and HDT<\/h2>\n<p><strong>A Vicat softening temperature of 148.3\u00b0C does not mean a loaded part can operate continuously at that temperature.<\/strong> For parts exposed to both heat and mechanical load, use HDT \u2014 the heat deflection temperature at a specified load \u2014 as the more relevant reference.<\/p>\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Thermal property<\/th>\n<th scope=\"col\">As printed<\/th>\n<th scope=\"col\">After annealing<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Vicat softening temperature<\/td>\n<td>148.3\u00b0C<\/td>\n<td>150.5\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>HDT at 0.45 MPa<\/td>\n<td>56.3\u00b0C<\/td>\n<td>107.6\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>HDT at 1.8 MPa<\/td>\n<td>53.8\u00b0C<\/td>\n<td>68.6\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Anneal at 100\u00b0C. Allow 30\u201360 minutes for walls under 4 mm, 1\u20132 hours at 6 mm, 2\u20134 hours at 8 mm and 3\u20136 hours at 10 mm. Use uniform heating, let the part cool inside the chamber and check its dimensions. Expected dimensional change is around 0.3\u20130.6%, so test a sample first for assemblies with tight tolerances.<\/p>\n<h2>3D printing settings<\/h2>\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Setting<\/th>\n<th scope=\"col\">Recommendation<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Nozzle<\/td>\n<td>230\u00b0C; working range 210\u2013230\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Bed<\/td>\n<td>25\u201365\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Build surface<\/td>\n<td>PC or textured PEI<\/td>\n<\/tr>\n<tr>\n<td>Speed<\/td>\n<td>Up to 300 mm\/s<\/td>\n<\/tr>\n<tr>\n<td>Cooling fan<\/td>\n<td>On<\/td>\n<\/tr>\n<tr>\n<td>Enclosure<\/td>\n<td>Not required<\/td>\n<\/tr>\n<tr>\n<td>Direct-drive retraction<\/td>\n<td>1\u20133 mm at 20\u201340 mm\/s<\/td>\n<\/tr>\n<tr>\n<td>Drying if moisture is absorbed<\/td>\n<td>60\u00b0C for 6 hours<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Start with a proven PLA profile and a short temperature, flow and layer-bonding test. Match the speed to your hotend flow and required finish. At 230\u00b0C the surface is semi-gloss. Around 210\u00b0C it becomes more matte, but strength may decrease.<\/p>\n<h2>Suitable applications<\/h2>\n<p>HT-PLA Pro is a practical choice for functional prototypes, brackets, clips, housings and workshop fixtures. For parts near a heat source, check the actual load and temperature against HDT. UV resistance is similar to ordinary PLA; ASA may be a better choice for prolonged exposure to direct sunlight.<\/p>\n<h2>Technical specifications and storage<\/h2>\n<table>\n<thead>\n<tr>\n<th scope=\"col\">Specification<\/th>\n<th scope=\"col\">Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Material<\/td>\n<td>PLA<\/td>\n<\/tr>\n<tr>\n<td>Diameter<\/td>\n<td>1.75 mm<\/td>\n<\/tr>\n<tr>\n<td>Net filament weight<\/td>\n<td>1 kg<\/td>\n<\/tr>\n<tr>\n<td>Colours<\/td>\n<td>Black and Grey<\/td>\n<\/tr>\n<tr>\n<td>Density<\/td>\n<td>1.24 g\/cm\u00b3<\/td>\n<\/tr>\n<tr>\n<td>Tensile strength, X\u2013Y \/ Z<\/td>\n<td>37.6 \/ 26.8 MPa<\/td>\n<\/tr>\n<tr>\n<td>Notched Charpy, X\u2013Y<\/td>\n<td>9.94 kJ\/m\u00b2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Keep the spool in a sealed dry box with desiccant. If needed, dry at 60\u00b0C for 6 hours. Explore the other <a href=\"https:\/\/3dbgprint.com\/en\/product-category\/materials\/pla\/\">PLA filaments for 3D printing<\/a>.<\/p>\n<p><a href=\"https:\/\/3dbgprint.com\/wp-content\/uploads\/2026\/10\/polymaker-ht-pla-pro-technical-data-sheet-en.pdf\">Polymaker HT-PLA Pro technical data sheet \u2014 PDF (EN)<\/a><\/p>\n<h2>Frequently asked questions<\/h2>\n<h3>How does HT-PLA Pro differ from HT-PLA?<\/h3>\n<p>HT-PLA Pro has a notched Charpy impact strength of 9.94 kJ\/m\u00b2 in X\u2013Y, compared with 4.94 kJ\/m\u00b2 for HT-PLA. Z-axis tensile strength is 26.8 versus 20.8 MPa. These are typical laboratory values; part orientation and print settings also affect performance.<\/p>\n<h3>Can HT-PLA Pro withstand 150\u00b0C under load?<\/h3>\n<p>The 148.3\u00b0C Vicat softening temperature is not a continuous service temperature under load. HDT at 0.45 MPa is 56.3\u00b0C as printed and 107.6\u00b0C after annealing. Select the material for the actual temperature, load and part geometry.<\/p>\n<h3>Which print settings should I use?<\/h3>\n<p>Start with a 230\u00b0C nozzle, a 25\u201365\u00b0C bed and the cooling fan on. The stated speed is up to 300 mm\/s, subject to hotend flow and part geometry. Suggested direct-drive retraction is 1\u20133 mm at 20\u201340 mm\/s.<\/p>\n<h3>Do I need a hardened nozzle or an enclosure?<\/h3>\n<p>No. Use a standard FDM\/FFF 3D printer for 1.75 mm filament with a standard brass nozzle. An enclosure or heated chamber is not required.<\/p>\n<h3>How do I anneal HT-PLA Pro parts?<\/h3>\n<p>Anneal at 100\u00b0C. The detailed guidance specifies 30\u201360 minutes for walls under 4 mm; thicker parts need longer. Let the part cool inside the heating chamber and check its dimensions: a change of around 0.3\u20130.6% is possible.<\/p>\n<h3>How should I dry and store the filament?<\/h3>\n<p>If moisture has been absorbed, dry at 60\u00b0C for 6 hours. Store the spool in a sealed dry box with desiccant and check flow after drying or changing the print profile.<\/p>\n<h3>Is it suitable for permanent outdoor use?<\/h3>\n<p>UV resistance is similar to standard PLA. For prolonged direct sunlight, consider ASA according to the requirements of the application.<\/p>\n<h3>Which colours and spool size are offered?<\/h3>\n<p>This product is offered in Black and Grey, with a 1.75 mm diameter and 1 kg net filament weight. The finish is semi-gloss at 230\u00b0C. Printing at around 210\u00b0C gives a more matte finish but can reduce strength.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Polymaker HT-PLA Pro is a 1.75 mm, 1 kg PLA filament for functional parts. It offers around twice the impact strength and stronger layer bonding than HT-PLA. Print at up to 300 mm\/s with a standard nozzle and no enclosure. Colours: Black and Grey.<\/p>\n","protected":false},"featured_media":132270,"template":"","meta":{"_gspb_post_css":""},"product_brand":[],"product_cat":[652,653],"product_tag":[],"class_list":["post-132277","product","type-product","status-publish","has-post-thumbnail","product_cat-materials","product_cat-pla","pa_proizvoditeli-polymaker-en","first","outofstock","taxable","shipping-taxable","purchasable","product-type-variable","wvs-archive-product-wrapper"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Polymaker HT-PLA Pro 1.75 mm, 1 kg \u2013 Price | 3DBGPRINT<\/title>\n<meta name=\"description\" content=\"Polymaker HT-PLA Pro in Black and Grey. Tough 1.75 mm, 1 kg PLA filament with improved layer bonding. 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