Las juntas son los puntos d\u00e9biles de cualquier estructura donde se unen dos materiales o elementos constructivos diferentes. Estas uniones se encuentran entre secciones de la estructura o en las juntas de materiales distintos. Las juntas sin sellar ofrecen aberturas que permiten la entrada de agua, aire, calor, fr\u00edo y vapor, lo que aumenta el riesgo de da\u00f1os estructurales, el desperdicio de energ\u00eda y reduce la vida \u00fatil del edificio.<\/p>\n
La importancia de la masilla en la construcci\u00f3n: el relleno de juntas es una parte necesaria de cualquier construcci\u00f3n, y algunos de sus beneficios incluyen:<\/p>\n
Permitir el movimiento<\/strong> A medida que los edificios se asientan, las temperaturas var\u00edan y se ven afectados por fuerzas externas, la estructura se expande, se contrae y se mueve. Un sellador el\u00e1stico puede responder a este movimiento sin agrietarse.<\/p>\n<\/li>\n Evitar fugas<\/strong> La filtraci\u00f3n de agua provoca moho, deterioro y \u00f3xido. Un sellado adecuado de las juntas impide la entrada de agua de lluvia.<\/p>\n<\/li>\n Aumentar la hermeticidad<\/strong> Las fugas de aire aumentan los costes de calefacci\u00f3n y refrigeraci\u00f3n. Un cierre herm\u00e9tico mejora el aislamiento.<\/p>\n<\/li>\n Durable<\/strong> \u2013 La masilla para juntas de primera calidad es resistente a la intemperie, a los rayos UV y a los productos qu\u00edmicos.<\/p>\n<\/li>\n<\/ul>\n Solo una masilla para juntas instalada correctamente y aplicada profesionalmente puede garantizar un sellado herm\u00e9tico e impermeable durante muchos a\u00f1os.<\/p>\n Existen diversos tipos de selladores de juntas para condiciones espec\u00edficas. Los tipos m\u00e1s comunes incluyen:<\/p>\n Los selladores a base de UR se utilizan con frecuencia en la construcci\u00f3n debido a su excelente adherencia, flexibilidad y robustez. Sus caracter\u00edsticas principales incluyen:<\/p>\n v\u00ednculo fuerte<\/strong> \u2013 Se adhiere a materiales porosos como el hormig\u00f3n, la mamposter\u00eda y la madera sin necesidad de imprimaci\u00f3n.<\/p>\n<\/li>\n Impermeable<\/strong> \u2013 La mayor\u00eda de los selladores de poliuretano son capaces de resistir la inmersi\u00f3n prolongada en agua, lo que significa que son \u00fatiles en condiciones h\u00famedas.<\/p>\n<\/li>\n capacidad de pintura<\/strong> \u2013 Se puede pintar sin que se desprenda la pintura para igualar el aspecto de la superficie.<\/p>\n<\/li>\n Retenci\u00f3n de suciedad<\/strong> \u2013 Resiste la suciedad y el polvo casi el doble de tiempo cuando se prueba, lo que equivale a 3 a\u00f1os de rendimiento.<\/p>\n<\/li>\n<\/ul>\n juntas de hormig\u00f3n<\/p>\n<\/li>\n Juntas de dilataci\u00f3n en pavimentos<\/p>\n<\/li>\n Aplicaciones para techos y remates<\/p>\n<\/li>\n per\u00edmetros de ventanas y puertas<\/p>\n<\/li>\n<\/ul>\n El sellador de silicona es ideal para aplicaciones donde se desea aplicar un producto, dejarlo secar durante un tiempo y luego volver, o para piezas que requieren resistencia a los rayos UV, alta adherencia o alto rendimiento a temperaturas elevadas, etc. Sus ventajas incluyen:<\/p>\n Excelente adherencia al vidrio y al metal<\/strong> \u2013 Elimina la necesidad de acristalamiento y juntas vidrio-metal.<\/p>\n<\/li>\n Resistente a los rayos UV y a la intemperie<\/strong> \u2013 Nunca se degradar\u00e1 con el sol y puede soportar el fr\u00edo exterior.<\/p>\n<\/li>\n retenci\u00f3n del color<\/strong> \u2013 La silicona blanca y de colores claros no amarillea.<\/p>\n<\/li>\n Resistente a altas temperaturas<\/strong> \u2013 Es capaz de tolerar temperaturas de hasta 475 grados Fahrenheit sin derretirse.<\/p>\n<\/li>\n<\/ul>\n Uniones de vidrio y metal<\/p>\n<\/li>\n Sellador para espejos de ba\u00f1o y cocina (donde se requiere resistencia al moho)<\/p>\n<\/li>\n Zonas en entornos de alta temperatura, como cerca de chimeneas y sistemas de climatizaci\u00f3n.<\/p>\n<\/li>\n<\/ul>\n La masilla de l\u00e1tex acr\u00edlico es una opci\u00f3n econ\u00f3mica y f\u00e1cil de usar, ya que es a base de agua y se limpia con agua. Sin embargo, no es tan flexible ni duradera como el poliuretano o la silicona.<\/p>\n Se puede pintar y lijar<\/strong> \u2013 Ideal para acabados interiores.<\/p>\n<\/li>\n Bajo contenido de COV y f\u00e1cil de aplicar<\/strong> \u2013 Ideal para proyectos de bricolaje.<\/p>\n<\/li>\n flexibilidad limitada<\/strong> \u2013 No apto para articulaciones con mucha movilidad.<\/p>\n<\/li>\n<\/ul>\n Molduras y acabados interiores<\/p>\n<\/li>\n Juntas de paneles de yeso<\/p>\n<\/li>\n aplicaciones de bajo estr\u00e9s<\/p>\n<\/li>\n<\/ul>\n Son selladores de \u00faltima generaci\u00f3n que combinan lo mejor de los selladores de silicona y poliuretano para proporcionar:<\/p>\n Adhesi\u00f3n excepcional<\/strong> \u2013 Se utiliza para unir policarbonatos a una variedad de sustratos.<\/p>\n<\/li>\n Resistente a los rayos UV y a la intemperie<\/strong> \u2013 Dura m\u00e1s que los uretanos comunes.<\/p>\n<\/li>\n Pintable y flexible<\/strong> \u2013 Una opci\u00f3n adaptable para aplicaciones de alta exigencia.<\/p>\n<\/li>\n<\/ul>\n Juntas exteriores del edificio<\/p>\n<\/li>\n Articulaciones din\u00e1micas que requieren capacidad de movimiento<\/p>\n<\/li>\n \u00c1reas que requieren fuerza y flexibilidad<\/p>\n<\/li>\n<\/ul>\n La elecci\u00f3n de la masilla para juntas adecuada depende de varios factores:<\/p>\n Materiales porosos (hormig\u00f3n, ladrillo, madera) -> Sellantes de poliuretano o h\u00edbridos<\/p>\n<\/li>\n Sustratos no porosos (vidrio, metal, pl\u00e1stico) \u2192 Sellantes de silicona o h\u00edbridos<\/p>\n<\/li>\n Paneles de yeso y molduras interiores \u2192 L\u00e1tex acr\u00edlico<\/p>\n<\/li>\n<\/ul>\n Para exteriores expuestos a los rayos UV \u2192 Siliconas o h\u00edbridos de ambos tipos<\/p>\n<\/li>\n Zonas h\u00famedas o sumergidas \u2192 Poliuretano o silicona impermeable<\/p>\n<\/li>\n Zonas de alta temperatura \u2192 Silicona resistente al calor<\/p>\n<\/li>\n<\/ul>\n Juntas de gran dilataci\u00f3n (juntas de expansi\u00f3n, puentes) \u2192 Sellante de poliuretano o con tecnolog\u00eda h\u00edbrida<\/p>\n<\/li>\n Juntas de baja flexi\u00f3n (molduras interiores; paneles fijos) \u2192 L\u00e1tex acr\u00edlico<\/p>\n<\/li>\n<\/ul>\n \u00bfNecesitas un acabado que se pueda pintar? \u2192 Poliuretano vs l\u00e1tex acr\u00edlico<\/p>\n<\/li>\n \u00bfBuscas estabilidad de color a largo plazo? \u2192 Silicona<\/p>\n<\/li>\n<\/ul>\n Aqu\u00ed te explicamos c\u00f3mo conseguir un sellado duradero:<\/p>\n Limpie completamente la junta (polvo, grasa, masilla vieja). Puede aplicarse con una pistola de calafateo. Recorta la boquilla en un \u00e1ngulo de 45 grados para un mejor control del cord\u00f3n de pintura. (24-72 horas) para m\u00e1xima resistencia al agua y a la presi\u00f3n.<\/p>\n Se utiliz\u00f3 un tipo de sellador incorrecto (como l\u00e1tex acr\u00edlico en una junta con mucho movimiento).<\/p>\n<\/li>\n No preparar la superficie como se requiere (lo que a su vez provoca una mala adhesi\u00f3n).<\/p>\n<\/li>\n Rellenar en exceso o rellenar insuficientemente la junta (lo que provoca grietas o huecos).<\/p>\n<\/li>\n Pintar demasiado pronto (algunos selladores necesitan m\u00e1s tiempo de curado antes de pintar).<\/p>\n<\/li>\n<\/ul>\n El sellado es esencial en la construcci\u00f3n, ya que evita corrientes de aire y filtraciones de agua que pueden causar da\u00f1os estructurales en una vivienda. Al elegir el tipo de sellador adecuado \u2014ya sea poliuretano, silicona, acr\u00edlico o h\u00edbrido\u2014 e instalarlo correctamente, obtendr\u00e1 una barrera resistente y duradera que proteger\u00e1 su edificio durante mucho tiempo.<\/p>\n Al seleccionar un sellador de juntas, tenga siempre en cuenta el sustrato, los factores ambientales y las necesidades de movimiento para obtener los mejores resultados. Si se instalan y mantienen correctamente, sus juntas le brindar\u00e1n una excelente vida \u00fatil.<\/p>","protected":false},"excerpt":{"rendered":" Las juntas son los puntos d\u00e9biles de cualquier estructura donde se conectan dos materiales o elementos constructivos diferentes. 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are the weak points of any structure where two different construction materials or construction members are connected. These interfaces are between construction sections or at dissimilar material junctions.","_links":{"self":[{"href":"https:\/\/joobond.com\/es\/wp-json\/wp\/v2\/posts\/2880","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/joobond.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/joobond.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/joobond.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/joobond.com\/es\/wp-json\/wp\/v2\/comments?post=2880"}],"version-history":[{"count":0,"href":"https:\/\/joobond.com\/es\/wp-json\/wp\/v2\/posts\/2880\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/joobond.com\/es\/wp-json\/wp\/v2\/media\/2883"}],"wp:attachment":[{"href":"https:\/\/joobond.com\/es\/wp-json\/wp\/v2\/media?parent=2880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/joobond.com\/es\/wp-json\/wp\/v2\/categories?post=2880"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/joobond.com\/es\/wp-json\/wp\/v2\/tags?post=2880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Tipos y usos de selladores para juntas<\/h2>\n
1. Sellador de juntas de poliuretano<\/h3>\n
\n
Ideal para:<\/h4>\n
\n
2. Sellador de juntas de silicona<\/h3>\n
\n
Ideal para:<\/h4>\n
\n
3. Sellador de juntas de l\u00e1tex acr\u00edlico<\/h3>\n
\n
Ideal para:<\/h4>\n
\n
4. Sellantes h\u00edbridos (pol\u00edmero MS y selladores modificados con silano)<\/h3>\n
\n
Ideal para:<\/h4>\n
\n
Elegir la masilla para juntas adecuada<\/h2>\n
1. Material del sustrato<\/h3>\n
\n
2. Condiciones ambientales<\/h3>\n
\n
3. Requisitos de movimiento<\/h3>\n
\n
4. Necesidades est\u00e9ticas<\/h3>\n
\n
Aplicaci\u00f3n correcta de la masilla para juntas<\/h2>\n
Preparaci\u00f3n de la superficie<\/h3>\n
Es mejor utilizarlo sobre una superficie seca.<\/p>\nSelecci\u00f3n de herramientas<\/h3>\n
Acabado liso con una herramienta de calafateo\/con el dedo mojado.<\/p>\nT\u00e9cnica de aplicaci\u00f3n<\/h3>\n
Preferiblemente, aplic\u00e1ndola en una l\u00ednea pr\u00e1cticamente constante.
Aplique la masilla inmediatamente para obtener un acabado impecable.<\/p>\nTiempo de curado<\/h3>\n
Errores comunes que se deben evitar<\/h2>\n
\n
Conclusi\u00f3n<\/h2>\n