Browse Forums Outdoor Living 1 Nov 21, 2011 6:36 pm We have just finished laying our new decking only a couple of days ago. We used mixed Australian hardwood bought from the auctions. We haven't even had a chance to seal it yet and it's getting a lot of black spots all over it - more so in some areas. We've tried sanding it out but without much success. At first we thought it could be mould but we don't think it's this. I've included some pics for you to take a look. http://i683.photobucket.com/albums/vv19 ... ci/126.jpg http://i683.photobucket.com/albums/vv19 ... ci/124.jpg What could it be because we are stumped - it looks so awful on our nice new deck and we are hoping it's not permanent!! I've also posted this in the General Discussions area for more traffic as we need to resolve this problem ASAP. Re: HELP! Our new decking has black spots - what could it be 2Nov 27, 2011 2:10 pm pretty standered responce to hard wood and water..... a hard wood deck needs to be sealed as soon as you lay it, what your seeing is sap and a bit of mould... a result of they way they dry out hard wood. Not a great deal you can do about it now either.... prob not what you want to hear. however i have been wrong before and will be wrong again and can only really guess from a picture.... Very common on rendered homes Smaller suppliers get the lower quality raw materials 6 11803 Hi, as per the subject. Does anyone have any recommendations for the best value decking oil (Bunning is close to where I live) for a treated pine deck? Thanks 0 10970 Thankyou for your advice. We do have Caesar coming out and hopefully resolve the issue for us. 4 18728 |