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<span id="openzim-page-title" class="mw-page-title-main"><span class="mw-page-title-main">Wallpaper paste</span></span>
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<p><b>Wallpaper adhesive</b> or <b>wallpaper paste</b> is a specific <a href="Adhesive" title="Adhesive">adhesive</a>, based on <a href="Modified_starch" title="Modified starch">modified starch</a>, <a href="Methylcellulose" class="mw-redirect" title="Methylcellulose">methylcellulose</a>, or <a href="Clay" title="Clay">clay</a><sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> which is used to fix <a href="Wallpaper" title="Wallpaper">wallpaper</a> to walls.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</p><p>Wallpaper pastes have a typical <a href="Shear_thinning" title="Shear thinning">shear thinning</a> <a href="Viscosity" title="Viscosity">viscosity</a> and a high wet adhesive tack. These properties are needed to slow down the penetration of the adhesive into the paper and wall, and give slow bonding speed which gives the wallpaper hanger time to line up the wallpaper correctly on the wall. The adhesive is usually sold in pouches or boxes as flakes that are mixed with water to produce the paste. It is also available ready mixed in tubs.
</p><p>The wallpaper adhesive is applied to the wallpaper to let the moisture of the adhesive soak into and penetrate the paper. The paper will thus expand before hanging rather than on the wall, which would cause vertical bubbles in each panel of wallpaper as the adhesive dried from the edges in.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> When using a type of wallpaper paper that does not expand, such as <a href="Nonwoven" class="mw-redirect" title="Nonwoven">nonwoven</a> or <a href="Fiberglass" title="Fiberglass">fiberglass</a> wallpaper, the adhesive is applied to the wall instead.
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<div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2></div>
<ul><li><a href="Adhesive" title="Adhesive">Adhesive</a></li>
<li><a href="Mural" title="Mural">Mural</a></li>
<li><a href="Papercrete" title="Papercrete">Papercrete</a></li>
<li><a href="Papier-m%C3%A2ch%C3%A9" title="Papier-mâché">Papier-mâché</a></li>
<li><a href="Wallpaper" title="Wallpaper">Wallpaper</a></li>
<li><a href="Wheatpaste" title="Wheatpaste">Wheatpaste</a></li></ul>
<div class="mw-heading mw-heading2"><h2 id="References">References</h2></div>
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</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.wallpaperinstaller.com/adhesives.html">"Wallpaper Adhesives"</a>. <i>wallpaperinstaller.com</i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20231205022034/http://wallpaperinstaller.com/adhesives.html">Archived</a> from the original on 2023-12-05.</cite></span>
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<li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.dummies.com/home-garden/walls-ceilings/how-to-activate-wallpaper-paste/">"How to Activate Wallpaper Paste"</a>. <i>dummies</i>. 2016-06-06. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20220325023854/https://www.dummies.com/article/home-auto-hobbies/home-improvement-appliances/walls-painting/how-to-activate-wallpaper-paste-190744/">Archived</a> from the original on 2022-03-25<span class="reference-accessdate">. Retrieved <span class="nowrap">2024-07-06</span></span>.</cite></span>
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<li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.homedepot.com/catalog/pdfImages/b4/b4fe1fc8-f032-4003-9159-40584bcea489.pdf">Homedepot Graham & Brown Wallpaper FAQ</a></span>
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