{"id":864,"date":"2026-10-31T09:00:00","date_gmt":"2026-10-31T01:00:00","guid":{"rendered":"https:\/\/cntopplastics.com\/esd-abs-vs-esd-pom\/"},"modified":"2026-10-31T11:09:04","modified_gmt":"2026-10-31T03:09:04","slug":"antistatic-abs-vs-pom","status":"publish","type":"post","link":"https:\/\/cntopplastics.com\/es\/antistatic-abs-vs-pom\/","title":{"rendered":"ESD ABS o ESD POM: c\u00f3mo elegir pl\u00e1stico antiest\u00e1tico para utillajes y manipulaci\u00f3n"},"content":{"rendered":"<input class=\"pin-master\" type=\"hidden\"><p class=\"wp-block-paragraph\">La plancha antiest\u00e1tica es una de esas categor\u00edas en las que dos materiales con la misma resistividad superficial impresa se comportan de forma totalmente distinta en una celda de producci\u00f3n. El ABS ESD y el POM ESD est\u00e1n ambos en el rango disipativo, ambos se suministran en negro y ambos se mecanizan en \u00fatiles, bandejas, nidos y gu\u00edas. Tras un a\u00f1o en la l\u00ednea, uno est\u00e1 cubierto de polvo fino y el otro sigue pareciendo nuevo \u2014 y no siempre es el mismo.<\/p>\n\n<h2 class=\"wp-block-heading\">Lo que el n\u00famero de resistividad dice y lo que no<\/h2>\n\n<p class=\"wp-block-paragraph\">Los pl\u00e1sticos ESD se especifican normalmente entre 10^6 y 10^9 ohmios de resistividad superficial, la banda disipativa: lo bastante lenta para evitar una descarga que da\u00f1e el dispositivo y lo bastante r\u00e1pida para drenar la carga antes de que se acumule. Los grados conductores se sit\u00faan entre 10^3 y 10^5 ohmios. La cifra es propiedad del compuesto y de la carga de relleno, no del pol\u00edmero, de modo que un ABS de 10^6 ohmios y un POM de 10^6 ohmios son el\u00e9ctricamente equivalentes. Todo lo que decide el caso ocurre en otro sitio.<\/p>\n\n<h2 class=\"wp-block-heading\">El residuo de desgaste es el fallo oculto<\/h2>\n\n<p class=\"wp-block-paragraph\">En una sala limpia o una l\u00ednea de semiconductores el enemigo no es la descarga, es la part\u00edcula. El ABS es amorfo y relativamente blando; los cantos mecanizados y los contactos deslizantes sueltan residuo fino que cae sobre el producto. El POM es semicristalino, m\u00e1s duro y de bajo coeficiente de fricci\u00f3n, de modo que una gu\u00eda de POM se desgasta mucho m\u00e1s despacio contra una pieza en movimiento. Cuando la pieza ESD es una superficie de desgaste \u2014 gu\u00edas, topes, mordazas, gu\u00edas de cadena \u2014 el POM suele ser la respuesta correcta y el ABS es un falso ahorro.<\/p>\n\n<h2 class=\"wp-block-heading\">Disolventes, agentes de limpieza y agrietamiento por tensi\u00f3n<\/h2>\n\n<p class=\"wp-block-paragraph\">Qu\u00edmicamente, el ABS es el m\u00e1s d\u00e9bil de los dos. El alcohol isoprop\u00edlico no le afecta, pero las cetonas, los \u00e9steres, los disolventes clorados y muchos adhesivos de etiquetado lo atacan, y una pieza de ABS mecanizada con tensiones residuales se agrieta a lo largo de las marcas de herramienta. El POM resiste bien alcoholes, combustibles, aceites y \u00e1lcalis suaves; los \u00e1cidos fuertes lo atacan. En una planta que limpia los \u00fatiles con disolvente varias veces por turno, el POM suele ser la opci\u00f3n m\u00e1s segura.<\/p>\n\n<h2 class=\"wp-block-heading\">Comparaci\u00f3n directa<\/h2>\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Propiedad<\/th><th>ABS ESD<\/th><th>POM ESD<\/th><\/tr><\/thead><tbody><tr><td>Estructura<\/td><td>Amorfo<\/td><td>Semicristalino<\/td><\/tr><tr><td>Resistividad superficial<\/td><td>10^6\u201310^9 ohm<\/td><td>10^6\u201310^9 ohm<\/td><\/tr><tr><td>Uso continuo<\/td><td>70\u201380 \u00b0C<\/td><td>90\u2013100 \u00b0C<\/td><\/tr><tr><td>Resistencia al desgaste<\/td><td>Moderada<\/td><td>Alta<\/td><\/tr><tr><td>Fricci\u00f3n<\/td><td>Media<\/td><td>Baja<\/td><\/tr><tr><td>Resistencia a disolventes<\/td><td>Mala ante cetonas y \u00e9steres<\/td><td>Buena<\/td><\/tr><tr><td>Estabilidad dimensional<\/td><td>Buena<\/td><td>Excelente<\/td><\/tr><tr><td>Acabado mecanizado<\/td><td>Buena<\/td><td>Excelente<\/td><\/tr><tr><td>Coste relativo<\/td><td>1x<\/td><td>1.3\u20131.6x<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\">D\u00f3nde gana cada uno<\/h2>\n\n<p class=\"wp-block-paragraph\">El ABS gana en carcasas, tapas, bastidores portadores y cualquier cosa grande y delgada. Se mecaniza m\u00e1s f\u00e1cilmente sin descantillar, admite insertos y uniones encoladas con m\u00e1s facilidad y es la plancha m\u00e1s barata. Si la pieza no desliza contra nada y solo se limpia con IPA, el ABS hace el trabajo.<\/p>\n\n<p class=\"wp-block-paragraph\">El POM gana en todo lo que toca producto en movimiento: nidos, gu\u00edas, pasadores de localizaci\u00f3n, mordazas, separadores de bandejas. Mantiene la tolerancia mejor tras el mecanizado, resiste la fluencia bajo carga de sujeci\u00f3n y genera mucho menos residuo. La prima de coste es peque\u00f1a frente al coste de un lote contaminado.<\/p>\n\n<p class=\"wp-block-paragraph\">Merece la pena nombrar un tercer caso: los grados cargados con fibra de carbono alcanzan la banda conductora entre 10^3 y 10^5 ohmios y son mucho m\u00e1s r\u00edgidos, pero son abrasivos, desgastan la herramienta y el polvo de fibra no es bienvenido en una sala limpia. \u00daselos cuando la especificaci\u00f3n exija conductor y no disipativo, no como mejora por defecto.<\/p>\n\n<h2 class=\"wp-block-heading\">Tres preguntas que lo resuelven<\/h2>\n\n<ul class=\"wp-block-list\"><li>\u00bfLa pieza desliza, roza o sujeta producto? Si es as\u00ed, POM ESD.<\/li><li>\u00bfLa pieza se limpia con algo que no sea alcohol? Si es as\u00ed, POM ESD.<\/li><li>\u00bfEs una tapa, carcasa o bastidor grande, sin contacto de desgaste y con limpieza solo con IPA? El ABS ESD es m\u00e1s barato y m\u00e1s f\u00e1cil de mecanizar.<\/li><\/ul>\n\n<h2 class=\"wp-block-heading\">Las preguntas que m\u00e1s nos hacen<\/h2>\n\n<h3 class=\"wp-block-heading\">\u00bfDerivar\u00e1 la resistividad con el tiempo?<\/h3>\n\n<p class=\"wp-block-paragraph\">Los compuestos con negro de carbono son estables en servicio; la deriva que se observa suele ser contaminaci\u00f3n superficial \u2014 agentes desmoldeantes, residuo de cinta, aceites de la piel \u2014 depositada sobre la red de relleno. Limpie con IPA y vuelva a medir antes de condenar la plancha.<\/p>\n\n<h3 class=\"wp-block-heading\">\u00bfSe pueden encolar ESD ABS y ESD POM?<\/h3>\n\n<p class=\"wp-block-paragraph\">El ABS se encola con facilidad con cementos por disolvente y acr\u00edlicos estructurales. El POM es notoriamente dif\u00edcil: necesita tratamiento superficial o uni\u00f3n mec\u00e1nica. Si el conjunto va encolado, eso solo puede decidir el material.<\/p>\n\n<h3 class=\"wp-block-heading\">\u00bfEstos grados necesitan recocido tras el mecanizado?<\/h3>\n\n<p class=\"wp-block-paragraph\">El POM se beneficia de un recocido cuando la pieza es gruesa o debe mantener una tolerancia estrecha a temperatura. El ABS rara vez lo necesita, salvo que la pieza est\u00e9 fuertemente mecanizada desde plancha gruesa.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ambos se venden como placa y barra disipativas, ambos se mecanizan con limpieza y ambos cuestan mucho menos que el PEEK. La elecci\u00f3n depende del desgaste, de la exposici\u00f3n a disolventes y de cu\u00e1nto aguanta la tolerancia tras mil limpiezas.<\/p>\n","protected":false},"author":193679612,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_tp_seo_title":"","_tp_seo_desc":"","_tp_summary":"","_tp_updated":"","_jetpack_feature_clip_id":0,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[4581],"tags":[132603],"class_list":["post-864","post","type-post","status-publish","format-standard","hentry","category-technical-notes","tag-esd"],"jetpack_publicize_connections":[],"jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pcp8Cz-dW","jetpack-related-posts":[{"id":561,"url":"https:\/\/cntopplastics.com\/es\/machining-esd-plastics-resistivity\/","url_meta":{"origin":864,"position":0},"title":"Machining ESD plastics without losing the resistivity","author":"jessemei","date":"2026-10-26","format":false,"excerpt":"Cutting, sanding or overheating a dissipative grade can shift surface resistivity by decades. How to machine ESD plastics and verify the result.","rel":"","context":"En \u00abMachining\u00bb","block_context":{"text":"Machining","link":"https:\/\/cntopplastics.com\/es\/category\/machining\/"},"img":{"alt_text":"POM ESD Anti-static Sheet","src":"https:\/\/i0.wp.com\/cntopplastics.com\/wp-content\/uploads\/2026\/10\/tp-pom-esd.jpg?fit=1000%2C1000&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/cntopplastics.com\/wp-content\/uploads\/2026\/10\/tp-pom-esd.jpg?fit=1000%2C1000&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/cntopplastics.com\/wp-content\/uploads\/2026\/10\/tp-pom-esd.jpg?fit=1000%2C1000&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/cntopplastics.com\/wp-content\/uploads\/2026\/10\/tp-pom-esd.jpg?fit=1000%2C1000&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":100,"url":"https:\/\/cntopplastics.com\/es\/selecting-esd-material\/","url_meta":{"origin":864,"position":1},"title":"C\u00f3mo elegir un material ESD: resistividad superficial y volum\u00e9trica explicadas","author":"jessemei","date":"2026-09-12","format":false,"excerpt":"10 to the power 6 through 10 to the power 9 ohms sounds simple until you look at the datasheet. Here is what surface and volume resistivity actually mean for fixture design, and which carriers to avoid.","rel":"","context":"En \u00abMaterial Guide\u00bb","block_context":{"text":"Material Guide","link":"https:\/\/cntopplastics.com\/es\/category\/material-guide\/"},"img":{"alt_text":"Choosing an ESD material: surface vs volume resistivity explained","src":"https:\/\/i0.wp.com\/cntopplastics.com\/wp-content\/uploads\/2026\/10\/n-esd-material-selection.jpg?fit=1000%2C1000&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/cntopplastics.com\/wp-content\/uploads\/2026\/10\/n-esd-material-selection.jpg?fit=1000%2C1000&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/cntopplastics.com\/wp-content\/uploads\/2026\/10\/n-esd-material-selection.jpg?fit=1000%2C1000&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/cntopplastics.com\/wp-content\/uploads\/2026\/10\/n-esd-material-selection.jpg?fit=1000%2C1000&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":534,"url":"https:\/\/cntopplastics.com\/es\/semiconductor-wafer-handling-plastic-parts\/","url_meta":{"origin":864,"position":2},"title":"Plastic parts for wafer handling: what actually matters","author":"jessemei","date":"2026-10-20","format":false,"excerpt":"Wafer-handling parts are judged on particles, outgassing, ESD and stability, not datasheet strength. Choose the grade, then verify the process.","rel":"","context":"En \u00abIndustry Applications\u00bb","block_context":{"text":"Industry Applications","link":"https:\/\/cntopplastics.com\/es\/category\/industry-applications\/"},"img":{"alt_text":"Black ESD PEEK stock: three stacked black PEEK plates, a black PEEK rod disc and a machined PEEK bushing","src":"https:\/\/i0.wp.com\/cntopplastics.com\/wp-content\/uploads\/2026\/10\/tp-peek-esd.jpg?fit=1000%2C1000&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/cntopplastics.com\/wp-content\/uploads\/2026\/10\/tp-peek-esd.jpg?fit=1000%2C1000&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/cntopplastics.com\/wp-content\/uploads\/2026\/10\/tp-peek-esd.jpg?fit=1000%2C1000&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/cntopplastics.com\/wp-content\/uploads\/2026\/10\/tp-peek-esd.jpg?fit=1000%2C1000&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":104,"url":"https:\/\/cntopplastics.com\/es\/semiconductor-esd-fixtures\/","url_meta":{"origin":864,"position":3},"title":"Utillajes ESD para pruebas de semiconductores: materiales que superan la cualificaci\u00f3n","author":"jessemei","date":"2026-09-03","format":false,"excerpt":"Test sockets and wafer-handling fixtures fail qualification for three reasons \u2014 resistivity drift, outgassing and particulate. 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