biqueira em fibra de vidro
Fiberglass toe cap– Advantages
Designed to overcome some of the disadvantages of the traditional steel safety boot, composite materials (such as kevlar, carbon fibre, fibreglass and hard plastics) can firstly be more comfortable to wear: they are light – meaning they don’t drag your feet down like heavier boots can, and they don’t get excessively hot or cold. Non-metallic anti-penetration midsoles are also softer and more flexible than steel. This means that at the end of a hot summer’s day on site, composite work boots can definitely feel like an advantage. Secondly, as they are not metal based, they can be worn in high security workplaces without setting off metal detectors – though note it is still possible for composite safety boots to trigger metal detectors if they have other metal components (like eyelets). Some composite work boots are explicitly marketed as “metal free” to signify their compatibility with security systems.Da mesma forma, as biqueiras e entressolas compostas não apresentam risco aumentado de choque elétrico ou de causar faíscas, mesmo que a bota fique desgastada ou danificada. As entressolas compostas também podem ser facilmente instaladas ao longo de todo o comprimento da sola, enquanto com alternativas de aço isso nem sempre é possível, devido à necessidade de que essa parte do sapato seja flexível. Isso significa que eles podem oferecer mais proteção contra pregos, parafusos e outros objetos pontiagudos.
Fiberglass toe cap VS. Steel – Disadvantages
No entanto, o aço tem suas desvantagens. Em primeiro lugar, adicionar componentes de aço ao calçado rapidamente o torna mais pesado, e esse peso extra pode ser cansativo, especialmente se você tiver que se movimentar muito no trabalho. Para agravar um pouco esse problema, as biqueiras de metal também tendem a reter o calor e, durante os meses de verão, as botas de segurança com biqueira de aço podem ficar desconfortavelmente quentes. Por outro lado, o metal também pode ficar extremamente frio quando exposto a baixas temperaturas, o que significa que as botas de segurança de aço muitas vezes não são calçados de escolha para trabalhar em câmaras frigoríficas e ambientes semelhantes. Além disso, se você trabalha em um local de trabalho de alta segurança, como um aeroporto ou prisão, provavelmente terá que passar por um detector de metais regularmente, e botas de segurança de aço o acionarão todas as vezes.Metal can also be hazardous in certain situations due to its high electrical conductivity and propensity to cause sparks if struck by another metal object, though as it is normally insulated by other materials inside the footwear this is not normally as much of a problem as might be assumed. Steel toe caps by themselves are not considered to pose any increased risk of electrocution as they are insulated by the rest of the shoe and do not typically come into contact with the ground. Metal midsoles are also typically insulated by other materials though they could potentially come into contact with the ground if the soles of the footwear are badly worn, and in this case they could pose an increased electrocution risk when working around live circuits. Likewise, if safety boots have been worn to the extent that metal components are exposed, there is a chance that they could cause sparks – making them hazardous for use in combustible environments. In any case, it is recommended that safety boots should be replaced as soon as possible in the event that the soles or toes become worn out.
