I have not used Monocote for years but if I remember correctly the glue required a higher temp to get it to stick.

Anyway here is my tip. I was shown this by Pete Tindal and it makes for a better job. Tack round the edges and use a heat gun to shrink it tight. BUT while heating the fabric use your other hand and smooth the covering down onto any woodwork. Seems to reduce wrinkles occurring esp. when hot.

Use an oven glove to protect your hand from the heat.