S\u00f3pamyndun \u00ed i\u00f0na\u00f0arh\u00fa\u00f0unum er algengt vandam\u00e1l sem sker\u00f0ir framlei\u00f0slu- og \u00e1fer\u00f0arferla. Til a\u00f0 koma \u00ed veg fyrir s\u00f3pa vi\u00f0 \u00fa\u00f0un e\u00f0a penslun eru notu\u00f0 soppuefni sem hindra myndun soppu \u2013 \u00feau koma einnig \u00ed veg fyrir a\u00f0 holur myndist \u00ed lokah\u00fa\u00f0inni.<\/p>\n
Val \u00e1 \u00e1hrifar\u00edkum fro\u00f0uhemjanda fer eftir notkunarh\u00e1ttum, samsetningu og ger\u00f0 plastefnis. \u00c1 marka\u00f0num eru \u00fdmsir fro\u00f0uhemjarar.<\/p>\n
Sil\u00edkon er s\u00e9rst\u00f6k efnasamband sem er hanna\u00f0 til a\u00f0 fjarl\u00e6gja e\u00f0a draga \u00far fro\u00f0u \u00ed i\u00f0na\u00f0arferlum. \u00dea\u00f0 gerir \u00feetta me\u00f0 \u00fev\u00ed a\u00f0 minnka yfirbor\u00f0sspennu, sem gerir loftb\u00f3lum kleift a\u00f0 springa, \u00f3st\u00f6\u00f0ugar fro\u00f0u og koma \u00ed veg fyrir a\u00f0 h\u00fan myndist aftur. Ennfremur kemur sil\u00edkon \u00ed veg fyrir endurfro\u00f0un.<\/p>\n
Silik\u00f3nfro\u00f0uhemjar eru f\u00e1anlegir b\u00e6\u00f0i \u00ed f\u00f6stu og v\u00f6kvaformi. F\u00f6stu fro\u00f0uhemjarnir eru n\u00f3gu endingarg\u00f3\u00f0ir fyrir langt\u00edmageymslu og au\u00f0velda flutninga og notkun; fullkomnir fyrir notkun sem krefst mj\u00f6g l\u00edtilla skammta af fro\u00f0uhemjandi efni.<\/p>\n
S\u00edlik\u00f3nar hafa marga kosti sem gera \u00fe\u00e1 hentuga sem b\u00f3lguey\u00f0andi efni \u00ed h\u00e1hita litasprettun \u00ed text\u00edl, fr\u00e1rennslisme\u00f0fer\u00f0arst\u00f6\u00f0vum og v\u00f6kva til m\u00e1lmstengingar, \u00fear \u00e1 me\u00f0al a\u00f0 \u00feola h\u00e1an hita, sterka s\u00fdrur og l\u00fat, auk \u00feess sem \u00feau eru eiturefnalaus og ska\u00f0laus fyrir menn. Hagn\u00fdttleiki \u00feeirra gerir \u00feeim kleift a\u00f0 vera mikilv\u00e6gar b\u00f3lguey\u00f0andi efni \u00ed text\u00edlhita- og h\u00e1hita litasetningarferlum, fr\u00e1veituhreinsist\u00f6\u00f0vum og m\u00e1lmfr\u00e6siv\u00f6kva; auk \u00feess draga s\u00edlik\u00f3n efni \u00far eitrun katalysta me\u00f0 \u00fev\u00ed a\u00f0 fjarl\u00e6gja ol\u00edub\u00f3lur \u00far a\u00f0skilna\u00f0art\u00f6nkum, sem eykur enn frekar skilvirkni ol\u00edu- og vatnaskilunarkerfa.<\/p>\n
Foamuey\u00f0andi efni eru efnafr\u00e6\u00f0ilegir aukaefni sem h\u00f6nnu\u00f0 eru til a\u00f0 draga \u00far yfirbor\u00f0sspennu og gera loftb\u00f3lum kleift a\u00f0 springa, og m\u00f6rg i\u00f0na\u00f0ar- og vi\u00f0skiptaferli nota \u00feessi efni til a\u00f0 stj\u00f3rna fro\u00f0umyndun, sem tryggir hn\u00f6kralausa starfsemi og dregur \u00far vi\u00f0halds\u00fe\u00f6rf.<\/p>\n
Val \u00e1 fro\u00f0u\u00feurrkara fer eftir s\u00e9rt\u00e6kum vandam\u00e1lum \u00ed form\u00falunni, \u00fear \u00e1 me\u00f0al tegund plastefnis og vinnslua\u00f0fer\u00f0 (penslun, r\u00fallun e\u00f0a \u00fa\u00f0un), vali fylliefna og \u00f6\u00f0rum fylliefnum sem notu\u00f0 eru. \u00de\u00f3 a\u00f0 flestir f\u00e1anlegir fro\u00f0u\u00feurrkarar henti fyrir flestar h\u00fa\u00f0unara\u00f0fer\u00f0ir mun \u00fe\u00edn s\u00e9rstaka a\u00f0sta\u00f0a \u00e1kvar\u00f0a hva\u00f0a fro\u00f0u\u00feurrki hentar best \u00fe\u00ednum \u00fe\u00f6rfum.<\/p>\n
Foamhnignunarefni eru yfirleitt flj\u00f3tandi efni eins og steinefnaol\u00eda, s\u00edlikon, jurtaol\u00edur og vatnsf\u00e6lilegt k\u00edsil sem festast \u00e1 yfirbor\u00f0i fro\u00f0u og rj\u00fafa lamellur hennar, sem lei\u00f0ir til \u00feess a\u00f0 loftb\u00f3lur springa og yfirbor\u00f0 fro\u00f0u brotnar ni\u00f0ur. Flest fro\u00f0udempandi efni eru me\u00f0 emulgerunarkerfi til a\u00f0 au\u00f0velda b\u00e6tingu og innlei\u00f0ingu; duftform\u00falur af fro\u00f0udempandi efnum m\u00e1 kaupa \u00e1 bur\u00f0arefnum eins og k\u00edsli til \u00fe\u00e6ginda.<\/p>\n
S\u00f3paey\u00f0andi efni sem nota\u00f0 er \u00ed papp\u00edrsframlei\u00f0slu getur verulega dregi\u00f0 \u00far fro\u00f0u og b\u00e6tt framlei\u00f0sluafk\u00f6st me\u00f0 \u00fev\u00ed a\u00f0 halda fro\u00f0u \u00ed l\u00e1gmarki og koma \u00ed veg fyrir framlei\u00f0slutruflanir sem stafa af fro\u00f0u. \u00deau eru almennt notu\u00f0 til a\u00f0 stj\u00f3rna fro\u00f0umyndun \u00ed papp\u00edrsmassa og hv\u00edtu vatni og geta hindra\u00f0 fro\u00f0u vi\u00f0 l\u00e1gar styrkleika undir mismunandi hitast\u00e6\u00f0um.<\/p>\n
H\u00e1gler\u00f6ndu\u00f0 alk\u00f3h\u00f3lfro\u00f0u\u00feurrkunarefni eru v\u00f6kvaefni me\u00f0 sterka hidrof\u00f3b\u00edska og veikbur\u00f0a hidrof\u00edla eiginleika. \u00deau eru miki\u00f0 notu\u00f0 \u00ed \u00fdmsum i\u00f0na\u00f0i, \u00fear \u00e1 me\u00f0al \u00ed h\u00fa\u00f0un, efnaframlei\u00f0slu, fr\u00e1rennslisme\u00f0fer\u00f0arkerfum og \u00fa\u00f0ahreinsun vi\u00f0 mi\u00f0lungs- og h\u00e1an hita.<\/p>\n
Defoamer samanstendur venjulega af bl\u00f6ndu v\u00f6kva og vatnsf\u00e6lna f\u00f6stu efna sem draga \u00far yfirbor\u00f0sspennu til a\u00f0 brj\u00f3ta upp fro\u00f0u, svo sem s\u00edlik\u00f3num, steinefnav\u00f6kvum, fitus\u00fdrum e\u00f0a yfirbor\u00f0svirkum efnum. Vatnsf\u00e6ln f\u00f6st efni \u00far k\u00edsli e\u00f0a \u00e1l\u00f3x\u00ed\u00f0i m\u00e1 einnig b\u00e6ta til a\u00f0 auka virkni og stj\u00f3rn \u00e1 seigju. Foamvarnarefni vinnur a\u00f0 \u00fev\u00ed a\u00f0 draga \u00far n\u00faverandi fro\u00f0u \u00ed i\u00f0na\u00f0arumhverfi, svo sem \u00ed papp\u00edrsframlei\u00f0slu. \u00deetta getur hj\u00e1lpa\u00f0 til vi\u00f0 a\u00f0 l\u00e6kka vi\u00f0halds\u00fe\u00f6rf, draga \u00far h\u00e6ttulegum a\u00f0st\u00e6\u00f0um sem stafa af fro\u00f0uupps\u00f6fnun og auka heildarhagkv\u00e6mni kerfisins. \u00deau m\u00e1 nota anna\u00f0hvort sem me\u00f0fer\u00f0 \u00e1 n\u00faverandi fro\u00f0u\u00e1standi e\u00f0a sem b\u00e6tiefni til a\u00f0 koma \u00ed veg fyrir fro\u00f0u \u00ed framt\u00ed\u00f0inni.<\/p>\n