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tapir-models.ro • View topic - Primer Vallejo - cum se foloseste?

Primer Vallejo - cum se foloseste?

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Primer Vallejo - cum se foloseste?

Postby Buss » Thu Apr 11, 2013 10:18 pm

Am tot intrebat in stanga si in dreapta despre cum se foloseste produsul asta pentru ca mie imi scoate peri albi si de multe ori aleg sa nu il folosesc.

Este vorba de primer-ul Vallejo Gri (nu cred ca e importanta culoarea) la sticluta de 200 ml. Ideea e ca nu reusesc de nici o culoare sa il dau prin aerograf din cauza ca mi se usuca foarte repede pe duza si face dop. Foarte repede inseamna dat 5-10 pufuri si deja "sughite" si sufla cu rateuri. Am incercat cu thinnerul vallejo - la fel ; cu retarder vallejo - la fel ; diluat cu solutie de sters geamuri - m-a tinut mai mult pana sa se infunde dar tot s-a infundat. Sa dau un exemplu - acum lucrez la JSU 152 la 1/35 si aseara am grunduit toata macheta - sasiu, roti separat si partea superioara. A trebuit sa desfac si sa curat aerograful de 6-7 ori si sa fumez vreo 3-4 tigari :) aproximativ o ora jumate.

Am incercat si cu presiune mica, si cu presiune mai mare, dilutii de la 20% la 80% si se intampla exact acelasi lucru - dop in duza.

Am mai patit si cu Model Air dar acolo daca pun retarder si putina apa nu mai am treaba.

Este cineva care foloseste si ma invata si pe mine secretul suprem? :P

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Re: Primer Vallejo - cum se foloseste?

Postby Marhaba » Thu Apr 11, 2013 10:19 pm

Secretul suprem este sa nu mai grunduiesti fara rost machete 1/35.

Daca tot ai deschis discutia poate ma lamureste si pe mine (si pe altii) cineva care este de fapt rostul acestui grund?
Inainte de a se posta tot felul de citate de pe net, mentionez urmatoarele:

- vopseaua prinde EXACT la fel de bine si direct pe macheta (din plastic) - daca stii s-o aplici , deci povestea cu grundul pentru ca vopseaua sa adere mai bine e o prostie. Cea mai nasoala vopsea pe baza de apa prinde la fix pe orice fel de plastic (chiar nespalat cu apa si sapun - alta baliverna). Nu mai vorbesc de vopsele pe baza de alcool sau emailuri. Desigur vorbesc din experienta nu din ce-am citit pe net, folclor modelistic, etc
- inteleg ca la figurine ies in evidenta unele defecte de fabricatie dupa aplicarea stratului de grund. Nu pot zice ca ma pricep, asa o fi dar nu vad de ce n-ar iesi in evidenta daca in loc de grund am da un strat de vopsea normala (de culoarea grundului eventual). Mai e chestia cu figurinele din metal pe care nu stiu cum prinde vopseaua acrilica fara grund ca n-am incercat. Dar sigur emailurile prind. Asa ca de ce n-am da un strat de vopsea email pe figurinametalica pe post de "grund" si apoi sigur prinde orice acrilica
- la scari mici unde fiecare strat in plus conteaza mi se pare cu atit mai nasol sa ineci detalii pretioase in grund.
- ca sa nu se inteleaga gresit: nu sunt pro sau contra grundului sau al celor care-l aplica. Doar ca sunt curios daca se aplica pentru ca e important sa se aplice (adica are un rost pe care eu inca nu l-am descoperit) sau pentru ca asa umbla vorba c-ar fi bine.
- o ultima mentiune ar fi aceea ca e posibil sa aiba vreun rost in cazul vopsirii machetelor la pensula , nu stiu ca nu mai vopsesc cu pensula machetele de multa vreme . Insa nu despre asta e vorba.
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Re: Primer Vallejo - cum se foloseste?

Postby Buss » Thu Apr 11, 2013 10:19 pm

Eu m-am incapatanat sa il folosesc una la mana pentru ca e in cantitate maricica si e deschis la culoare si in cazul proiectului actual (ISU 152) unde plasticul este verde inchis iar blindatul va fi tot o nuanta de verde, am vrut sa pornesc vopsirea de la o culoare deschisa pentru a putea experimenta pentru priam oara cu preshading pe muchii si alte locuri. Doi la mana am dat niste bani si trebuie sa-l folosesc :P

P.S. Si eu am folosit gri deschis de la tamiya pe post de grund la figurine dar e altceva pt ca din 3 picaturi am grunduit 3 figurine :)

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Re: Primer Vallejo - cum se foloseste?

Postby Florin David » Thu Apr 11, 2013 10:20 pm

Buss, e din ala poliuretanic? Tocmai ce mi-am luat si eu unul (alb), nu l-am incercat pana acum, dar am citit/vazut pe net ca se comporta ok. Eu pana de curand am vopsit la pensula si primele machete le-am dat fara primer; "fugea" vopseaua de numa-numa. Apoi am trecut la primer alb fin Tamiya si am scapat de problema aderentei. La aerograf, n-am incercat pe plastic nud, dar ma gandesc ca efectul ar fi cam acelasi.

Un exemplu cu primer Vallejo (zice si de dilutie):

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Re: Primer Vallejo - cum se foloseste?

Postby Georgel Musat » Thu Apr 11, 2013 10:20 pm

Salutare. Eu n-am ce spune despre acest 'grund" Valejo ,dar sustin idea lui Marhaba si nu inteleg de ce spune Florin ca pe plastic direct curgea vopseaua , eu cand am avut pe cele de 1/72 blindate le vopseam la pensula fara grund /primer parerea mea este ca nu are cum sa opreasca ala scurgerea daca vopseaua e subtire/diluata ; de aerograf nu pot vorbii ca n-am folosit pana acum , machetele pe care le-am prezentat sunt vopsite de un prieten ce are asa ceva dar a insistat el sa le dea cu primer desii acum vreo 2 ani nu folosea asa ceva . Se intampla si la scara mare cu pistol de vopsit , aveam un maistru si un coleg ce mai suteau din vopsea si bagau diluant iar eu cand o puneam in pistol ii puneam diluantul normal da sa tetii rauri si parauri ce se scurgea pana m-am prins de buba . Am un prieten ce face avioane 1/72 si nu foloseste primer da machetele arata super . Stiu doar ca imi spunea ca pt rasina foloseste cateodata ca cica acolo are nevoie. Spor la machetit. B)
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Re: Primer Vallejo - cum se foloseste?

Postby Marhaba » Thu Apr 11, 2013 10:21 pm

Aplicata cu aerograful, pe plastic, orice vopsea (dintre cele cunoscute si utilizate in general) adera fara nici o problema indiferent de solventul folosit (apa, alcool, diluant). Evident, asa cum bine stim, cu aerograful vopseaua se aplica in straturi succesive foarte subtiri.
La aplicarea cu pensula nu ma bag, dar pot spune cu certitudine ca Valejo si Revell (acrilic in cutie cubica) adera fara probleme si aplicate cu pensula.
De aceea cel mai vehiculat motiv de folosire a grundului / primerului, adica acela ca adera mai bine vopseaua, nu are nici o relevanta dupa parerea mea.

Mai exista o discutie: in cazul unui weathering pronuntat, cu efecte puternice si tratamente multiple, este absolut necesar ca patul de vopsea de la care se incepe weatheringul sa fie cit se poate de sanatos si bine fixat. Dar inca o data, nu neaparat grund / primer.
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Re: Primer Vallejo - cum se foloseste?

Postby Bogdan Papuse » Thu Apr 11, 2013 10:21 pm

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Re: Primer Vallejo - cum se foloseste?

Postby Olaf The Viking » Thu Apr 11, 2013 10:22 pm


"Si sa le spui tuturor din sat ca acolo unde te-a scuipat Cartula te-a pupat Olaf si ti-a sters rusinea."
Dumnezeu e de partea tuturor, si, daca ne uitam de-a lungul istoriei, vedem ca e de partea celor cu mai multi bani si armate mai mari.
Intai da cu toporul si pe urma intreaba ce a vrut.
Da, poti da un click si pe si sa iti iei ceva "dragut". Am nevoie de bani.
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Re: Primer Vallejo - cum se foloseste?

Postby Marhaba » Thu Apr 11, 2013 10:22 pm

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Re: Primer Vallejo - cum se foloseste?

Postby Buss » Thu Apr 11, 2013 10:23 pm

Sa nu deviem usor-usor de la subiect :P Am observat ca diluat destul de bine cu solutie de spalat geamuri merge destul de ok. Tot a facut dop dar am grunduit 4 figurine.

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