If the tent canvas has been treated against dirt, mildew and mould and is water repellent, why do I still have to maintain the canvas?

1.0TenCate Outdoor Fabricshttps://www.tencateoutdoorfabrics.com/en/If the tent canvas has been treated against dirt, mildew and mould and is water repellent, why do I still have to maintain the canvas? - TenCate Outdoor Fabricsrich600338<blockquote class="wp-embedded-content" data-secret="sZ1HNciLmc"><a href="https://www.tencateoutdoorfabrics.com/en/faq/maintain-if-water-repellent/">If the tent canvas has been treated against dirt, mildew and mould and is water repellent, why do I still have to maintain the canvas?</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.tencateoutdoorfabrics.com/en/faq/maintain-if-water-repellent/embed/#?secret=sZ1HNciLmc" width="600" height="338" title="“If the tent canvas has been treated against dirt, mildew and mould and is water repellent, why do I still have to maintain the canvas?” — TenCate Outdoor Fabrics" data-secret="sZ1HNciLmc" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.tencateoutdoorfabrics.com/wp-includes/js/wp-embed.min.js /* ]]> */ </script> Influences from outside, such as bird droppings, spores, cooking steam, grease and soap from hands or laundry will reduce the effect of the protective agents. Maintenance and stain removal are necessary if you want to enjoy your tent for longer.