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It also aids in covering residual microbiological and fungal stains. The primer is intended for non-porous interior and exterior surfaces across residential, commercial and industrial settings, with specified surface preparation, application, dry time and recoat guidance.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/zinsser-mold-killing-primer-tds/404172/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/zinsser-mold-killing-primer-tds/404172.png","ImageObject",300,407,{"name":92,"@type":93},"Aldword","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-09-27",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",17,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What does Zinsser Mold Killing Primer do after application?","Question",{"text":113,"@type":114},"It is designed to kill existing mold and prevent the growth of mold, mildew and other fungal organisms on the paint film.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How should the surface be prepared before applying the primer?",{"text":118,"@type":114},"Remove heavy soil, overgrowth and loose material, ensure the substrate is free of slime or excessive moisture, and use an EPA-registered mildew remover if mold or mildew must be removed prior to application.",{"name":120,"@type":111,"acceptedAnswer":121},"What are the key application and recoat/dry time requirements?",{"text":122,"@type":114},"Do not thin or mix with water or other chemicals; apply with appropriate tools and ventilation, then allow it to air dry—dry to the touch in 30 minutes and recoatable in 1 hour, with topcoat recommended within 72 hours.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},404172,1790648271,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":14,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":24,"preview_page_count":4},2336478940917,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","DESCRIPTION AND USES  \nZinsser® Mold Killing Primer is a water-based EPA registered fungicidal protective coating that can be used to paint over and kill all existing mold, mildew, moss, fungi, odor causing bacteria and any other fungal organisms* . The Mold Killing Primer contains an EPA registered antimicrobial to prevent the growth of mold, mildew and other fungal organisms on the paint film. Mold Killing Primer also aides in covering residual microbiological and fungal stains.  \nMold Killing Primer is for use on non-porous interior and exterior, residential, commercial, and industrial applications and can be applied in factories, warehouses, storage facilities, refrigerated storage facilities, office buildings, residential living, schools, hospitals, veterinary care facilities, elderly care facilities, prisons and correction facilities, wash houses, restaurants, fitness centers and locker rooms, attics, basements, window frames, bathrooms, wall cavities, baseboards, sub-floors and table tops. Mold Killing Primer can be used with any topcoat, and is ideal with Zinsser PERMAWHITE® . Not recommended for new or unpainted aluminum, metal or vinyl siding.  \nIt is a violation of Federal law to use this product in a manner inconsistent with its labeling. Check with all local, state and federal regulations prior to using or working or using this product. Fix the source of any moisture problems prior toremediation. Do not attempt to salvage damaged or structurally unsound building materials. Consult a qualified professional to perform a thorough inspection and supply work specifications appropriate to the project.  \nPRODUCTS  \nSKU DESCRIPTION  \n276049  \n276087  \n276088  \n1 Gallon  \n1 Quart  \n5 Gallons  \nPRODUCT APPLICATION  \nSURFACE PREPARATION  \n*For applications that have existing wet, slimy, heavy soiled, gross filth, overgrowth or loose material on the substrate a pre-cleaning step is required. Physically or mechanically remove gross filth, heavy soil, overgrowth or loose material including dirt, grease, and oily films before application and ensure the substrate is free of slime or excessive moisture to ensure long-term adhesion and product performance, particularly on exterior surfaces. If mold or mildew needs tobe removed prior to application remove with a mildew remover that is EPA registered and let dry.  \nPRODUCT APPLICATION (cont.)  \nSURFACE PREPARATION (cont.)  \nEye, skin and NOISH approved respiratory protection is highly recommended. Patch surface irregularities with appropriate patching compounds.  \nWARNING: If you scrape, sand, or remove old paint, you may release lead dust. LEAD IS TOXIC. EXPOSURE TO LEAD DUST CAN CAUSE SERIOUS ILLNESS, SUCH AS BRAIN DAMAGE, ESPECIALLY IN CHILDREN. PREGNANT WOMEN SHOULD ALSO AVOID EXPOSURE. Wear a NIOSH-approved respirator to control lead exposure. Clean up carefully with a HEPA vacuum and a wet mop. Before you start, find out how to protect yourself and your family by contacting the National Lead Information Hotline at 1-800-424-LEAD or log on to [www.eps.gov/lead](www.eps.gov/lead).  \nAPPLICATION  \nMold Killing Primer is a ready to use product. Do not thin, do not dilute and do not mix with water or other chemicals or other paints. Mix thoroughly. Do not apply when air or surface temperature is below 50° F (10°C) or when drying conditions are poor. Use adequate ventilation during application.  \nUse a brush, roller, or airless sprayer to apply. Follow the manufacturer’s instructions when using spray equipment. For airless spraying use a 0.017” to 0 .019” tip at 2000 to 2500 psi. Coverage is dependant on substrate porosity and surface smoothness. Apply generously and uniformly, ensuring that the surface is completely coated. Allow to air dry. For heavy water stained areas, prime with Mold Killing Primer and allow it to dry. Follow with a Zinsser stain blocking primer such as BIN, BIN Advanced or Cover Stain.  \nDRY TIME  \nMold Killing Primer dries to the touch in 30 minutes and can be","cbCaiclbcKVVxP4m","https://ap.wps.com/l/cbCaiclbcKVVxP4m","pdf",414476,"English","# Description and Uses\n# Product Applications\n## Surface Preparation\n## Application\n## Dry Time\n# Limitations\n# Clean-up\n# Physical Properties","[{\"question\":\"What does Zinsser Mold Killing Primer do after application?\",\"answer\":\"It is designed to kill existing mold and prevent the growth of mold, mildew and other fungal organisms on the paint film.\"},{\"question\":\"How should the surface be prepared before applying the primer?\",\"answer\":\"Remove heavy soil, overgrowth and loose material, ensure the substrate is free of slime or excessive moisture, and use an EPA-registered mildew remover if mold or mildew must be removed prior to application.\"},{\"question\":\"What are the key application and recoat/dry time requirements?\",\"answer\":\"Do not thin or mix with water or other chemicals; apply with appropriate tools and ventilation, then allow it to air dry—dry to the touch in 30 minutes and recoatable in 1 hour, with topcoat recommended within 72 hours.\"}]","Zinsser Mold Killing Primer TDS | PDF",1790546120]