A\u0165 u\u017e opravujete \u017eidli, lep\u00edte z desek stolovou desku, nebo se v d\u00edln\u011b pokou\u0161\u00edte zmistrovat v\u00e1no\u010dn\u00ed p\u0159ekvapen\u00ed, bez lepen\u00ed d\u0159eva se neobejdete.<\/p>\n\n\n\n
Pokud dodr\u017e\u00edte n\u011bkolik z\u00e1kladn\u00edch pravidel, spoje budou pevn\u011bj\u0161\u00ed ne\u017e samotn\u00e9 d\u0159evo.<\/p>\n\n\n\n
Jsou to disperze, kter\u00e9 vl\u00e1dnou sv\u011btu lepidel na d\u0159evo. V lahvi\u010dk\u00e1ch \u010di kbel\u00edc\u00edch maj\u00ed formu jemn\u00e9ho b\u00edl\u00e9ho kr\u00e9mu, kter\u00fd se dob\u0159e rozt\u00e9k\u00e1, po vytvrzen\u00ed je pr\u016fhledn\u00fd a p\u0159ipom\u00edn\u00e1 m\u011bkk\u00fd plast. P\u0159ev\u00e1\u017e\u00ed se s p\u00f3rovit\u00fdm povrchem d\u0159eva natolik, \u017ee pokud se sna\u017e\u00edte spoj zlomit, v\u011bt\u0161inou povol\u00ed d\u0159evo a ne lepidlo.<\/p>\n\n\n\n
V\u017edy ve vhodn\u00e9m prost\u0159ed\u00ed
Nevytopen\u00e1 d\u00edlna, podchlazen\u00e9 lepidlo a studen\u00e9 desky jsou silnou bari\u00e9rou pro to, aby polymery lepidla vytvo\u0159ily s vl\u00e1kny d\u0159eva dostate\u010dn\u011b silnou vazbu. Voda opust\u00ed disperzi d\u0159\u00edve, ne\u017e se vytvo\u0159\u00ed siln\u00fd spoj. Teplota d\u0159eva i prost\u0159ed\u00ed by m\u011bla b\u00fdt vy\u0161\u0161\u00ed ne\u017e 15 \u00b0C. Zatopit v d\u00edln\u011b p\u0159i lepen\u00ed se vyplat\u00ed.<\/p>\n\n\n\n
Pokud tuto mo\u017enost nem\u00e1te, p\u0159eneste d\u0159ev\u011bn\u00e9 \u010d\u00e1sti do vyt\u00e1p\u011bn\u00e9ho interi\u00e9ru a vy\u010dkejte, a\u017e se aklimatizuj\u00ed. Oh\u0159\u00e1t desky f\u00e9nem nesta\u010d\u00ed. U \u0159\u00eddk\u00e9ho smrkov\u00e9ho d\u0159eva to m\u016f\u017ee trvat n\u011bkolik hodin, proto\u017ee je v\u00fdborn\u00fdm tepeln\u00fdm izolantem.<\/p>\n\n\n\n
Bez \u0159ed\u011bn\u00ed a v z\u00e1ruce
Pokud dob\u0159e uzav\u0159en\u00e9 lepidlo p\u0159i skladov\u00e1n\u00ed zhoustlo, je to sp\u00ed\u0161e sign\u00e1lem jeho st\u00e1rnut\u00ed ne\u017e n\u00e1znakem toho, \u017ee byste jej m\u011bli \u0159edit vodou. Nahl\u00e9dn\u011bte na etiketu nebo uz\u00e1v\u011br a vy\u010dt\u011bte z nich datum v\u00fdroby. P\u0159i vhodn\u00e9m skladov\u00e1n\u00ed vydr\u017e\u00ed lepidla v\u011bt\u0161inou jeden rok. Vystaven\u00ed vysok\u00fdm teplot\u00e1m \u010di p\u0159\u00edm\u00e9mu slunci \u017eivotnost sni\u017euje. Pokud v\u00e1m na kvalit\u011b lepen\u00ed z\u00e1le\u017e\u00ed, odlo\u017ete si jej stranou na pap\u00edr \u010di jin\u00e9 sav\u00e9 materi\u00e1ly a pro lepen\u00ed d\u0159eva otev\u0159ete novou lahvi\u010dku.<\/p>\n\n\n\n
Pokud jste nam\u00edsto lepidla na\u0161li v n\u00e1dobce pouze hustou lepkavou p\u011bnu s bublinkami, pak v\u011bzte, \u017ee va\u0161e lepidlo pro\u0161lo mrazem. Nen\u00e1vratn\u011b se zm\u011bnilo na hmotu, kterou ji\u017e nelze op\u011btovn\u011b ve vod\u011b rozpustit. Disperze jsou na mr\u00e1z citliv\u00e9 bez ohledu na to, zda se jedn\u00e1 o lepidlo nebo penetraci.<\/p>\n\n\n\n
Na \u010dist\u00fd povrch
P\u0159i dobr\u00e9 technice lepen\u00ed nen\u00ed velk\u00fd rozd\u00edl mezi t\u00edm, jestli lep\u00edte dokonale hoblovan\u00e9 desky, nebo nedbale brou\u0161en\u00e9 povrchy d\u0159eva. Pevn\u00fd spoj se vytvo\u0159\u00ed na obou. Pokud se v\u0161ak do cesty postav\u00ed prach, olejov\u00e1 lazura nebo nevyzr\u00e1l\u00e1 impregnace \u010di tmel, va\u0161e snaha m\u016f\u017ee skon\u010dit zklam\u00e1n\u00edm.<\/p>\n\n\n\n
Vyvarujte se nan\u00e1\u0161en\u00ed vosk\u016f, olejov\u00fdch napou\u0161t\u011bdel, tenkovrstv\u00fdch lazur d\u0159\u00edve, ne\u017e se pust\u00edte do lepen\u00ed. Pokud je to nutn\u00e9, ochra\u0148te m\u00edsta ur\u010den\u00e1 k vytvo\u0159en\u00ed lepen\u00fdch spoj\u016f ochrannou mal\u00ed\u0159skou p\u00e1skou. Dokud vyzr\u00e1l\u00e9 lepidlo \u017e\u00e1dn\u00fd z t\u011bchto n\u00e1t\u011br\u016f nepo\u0161kod\u00ed, zraj\u00edc\u00ed disperze se s nimi nedok\u00e1\u017ee propojit.<\/p>\n\n\n\n
V limitu as p\u0159\u00edtlakem
V\u00fdrobce ka\u017ed\u00e9ho z lepidel p\u0159edepisuje, jak\u00fd je otev\u0159en\u00fd \u010das p\u0159i lepen\u00ed. Znamen\u00e1 to, \u017ee v tomto limitu mus\u00edte stihnout nanesen\u00e9 lepidlo rozet\u0159\u00edt, p\u0159itla\u010dit k protistran\u011b a ztu\u017eit tak, aby sv\u011brky vytvo\u0159ily na lepen\u00fd spoj p\u0159im\u011b\u0159en\u00fd a rovnom\u011brn\u00fd tlak. Zpo\u017ed\u011bn\u00ed zp\u016fsob\u00ed zesl\u00e1bnut\u00ed spoje, proto\u017ee n\u011bkter\u00e9 z vazeb se za\u010daly tvo\u0159it d\u0159\u00edve, ne\u017e mohly spojit ob\u011b lepen\u00e9 \u010d\u00e1sti.<\/p>\n\n\n\n
P\u0159\u00edli\u0161n\u00fd tlak zp\u016fsobuje vytla\u010den\u00ed lepidla ze spoje, co\u017e m\u016f\u017ee zp\u016fsobit slab\u0161\u00ed spoj, ne\u017e kdy\u017e je tlak slab\u0161\u00ed a lepidla z\u016fst\u00e1v\u00e1 na plo\u0161e v\u00edce. A\u0165 je vrstvi\u010dka lepidla po vyzr\u00e1n\u00ed t\u0159eba i \u010dtvrt milimetru siln\u00e1, i tak se spoj zlom\u00ed vedle n\u011bj a ne v linii lepu.<\/p>\n\n\n\n
N\u00e1nos na ob\u011b plochy
P\u0159i lepen\u00ed se osv\u011bd\u010dila technika nan\u00e1\u0161en\u00ed lepidla na ob\u011b lepen\u00e9 strany a jeho rozet\u0159en\u00ed \u0161t\u011btcem. Je tak jistota, \u017ee na ka\u017ed\u00e9m m\u00edst\u011b spoje bude dostatek lepidla k tomu, aby vznikl rovnom\u011brn\u011b pevn\u00fd spoj. A\u010dkoli i za cenu vyti\u0161t\u011bn\u00ed jeho \u010d\u00e1sti p\u0159i zv\u011brkov\u00e1n\u00ed.<\/p>\n\n\n\n
Jeliko\u017e lepidlo ve spoji klou\u017ee, mnoh\u00e9 druhy sv\u011brek obvykle p\u0159i plo\u0161n\u00e9m lepen\u00ed zp\u016fsob\u00ed posun lepen\u00fdch d\u00edlc\u016f. Tento neduh lze utlumit kr\u00e1tkou pauzou mezi ru\u010dn\u00edm p\u0159itla\u010den\u00edm \u010d\u00e1st\u00ed k sob\u011b a jejich ztu\u017een\u00edm. Prvotn\u00ed vazby polymer\u016f utlum\u00ed klouz\u00e1n\u00ed.<\/p>\n\n\n\n
Pro\u010d pr\u00e1v\u011b disperze?
Jejich p\u0159ednost\u00ed je zv\u00fd\u0161en\u00e1 odolnost proti vlhkosti a snadn\u00e1 manipulace. Zat\u00edmco klasick\u00fd klih je t\u0159eba p\u0159ed ka\u017edou prac\u00ed nechat nabobtnat a rozpustit v hork\u00e9 l\u00e1zni, disperze je v lahvi\u010dce v\u017edy p\u0159ipravena. Lepidla t\u0159\u00eddy D3 odol\u00e1vaj\u00ed vlhk\u00e9mu prost\u0159ed\u00ed v kryt\u00e9m exteri\u00e9ru, lepidla t\u0159\u00eddy D2 \u010di bez t\u0159\u00eddnosti nab\u00edzej\u00ed stabiln\u00ed pevnost v interi\u00e9ru. Na rozd\u00edl od klihu je v\u0161ak nelze horkou p\u00e1rou rozebrat. Pro dom\u00e1c\u00ed kutily jsou ide\u00e1ln\u00ed volbou.<\/p>\n\n\n\n
Mo\u017en\u00e1 jste nad t\u00edm nikdy neuva\u017eovali, ale disperzn\u00ed lepidla na d\u0159evo jsou v\u0161ude kolem v\u00e1s. Bez nich by v\u00fdrobce nedal dohromady dve\u0159e, p\u0159es kter\u00e9 p\u0159ech\u00e1z\u00edte z pokoje do pokoje. Lep\u00ed se jimi \u010d\u00e1sti d\u0159ev\u011bn\u00fdch oken, spojuj\u00ed se jimi \u017eidlov\u00e9 d\u00edlce, masivn\u00ed n\u00e1bytek, mo\u017en\u00e1 j\u00edm v\u00fdrobce slepil i sp\u00e1rovku na va\u0161em psac\u00edm stole \u010di okenn\u00edm parapetu.<\/p>\n","protected":false},"excerpt":{"rendered":"
A\u0165 u\u017e opravujete \u017eidli, lep\u00edte z desek stolovou desku, nebo se v d\u00edln\u011b pokou\u0161\u00edte zmistrovat v\u00e1no\u010dn\u00ed p\u0159ekvapen\u00ed, bez lepen\u00ed d\u0159eva se neobejdete. Pokud dodr\u017e\u00edte n\u011bkolik z\u00e1kladn\u00edch pravidel, spoje budou pevn\u011bj\u0161\u00ed ne\u017e samotn\u00e9 d\u0159evo. Jsou to disperze, kter\u00e9 vl\u00e1dnou sv\u011btu lepidel na d\u0159evo. V lahvi\u010dk\u00e1ch \u010di kbel\u00edc\u00edch maj\u00ed formu jemn\u00e9ho b\u00edl\u00e9ho kr\u00e9mu, kter\u00fd se dob\u0159e rozt\u00e9k\u00e1, […]<\/p>\n","protected":false},"author":2,"featured_media":643,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-642","post","type-post","status-publish","format-standard","has-post-thumbnail","category-rady-a-navody"],"amp_enabled":false,"_links":{"self":[{"href":"https:\/\/mikrosvety.cz\/index.php?rest_route=\/wp\/v2\/posts\/642","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mikrosvety.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mikrosvety.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mikrosvety.cz\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/mikrosvety.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=642"}],"version-history":[{"count":0,"href":"https:\/\/mikrosvety.cz\/index.php?rest_route=\/wp\/v2\/posts\/642\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mikrosvety.cz\/index.php?rest_route=\/wp\/v2\/media\/643"}],"wp:attachment":[{"href":"https:\/\/mikrosvety.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mikrosvety.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mikrosvety.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}